Final Preparation Challenge for OSSSC RI, ARI, AMIN: 24 September 2024

To excel in the OSSSC RI, ARI, and AMIN exams, mastering key topics in reasoning, mathematics, and general knowledge is crucial. Focus on reasoning questions covering series, analogy, coding-decoding, order and ranking, and analytical ability. Practice complex arithmetic problems, time and work, percentages, and number systems for mathematics. General knowledge preparation should include current events, Indian history, geography, and significant government schemes. Additionally, time management, accuracy, and mock tests will enhance your exam readiness. These are essential for boosting your confidence and performance in the competitive exam.

Final Preparation Challenge for OSSSC RI, ARI, AMIN

1. The perimeters of two similar triangles ABC and PQR are 156 cm and 46.8 cm respectively. If BC=19.5 cm and QR=x cm, then the value of x is:
   (a) 3.76 cm
   (b) 5.85 cm
   (c) 4.29 cm
   (d) 6.75 cm
   Ans: (b) 5.85 cm 
2. In two types of brass, the ratio of copper to zinc are 7: 4 and 2: 9 respectively if the two types of brass be melted and mixed in the ratio 6: 5, a new type of brass is obtained. Find the ratio of copper to zinc in this new type of brass.
   (a) 52: 51
   (b) 13: 35
   (c) 52: 69
   (d) 35: 13
   Ans.(c)
   Sol.
3. A shopkeeper mixes 140 kg of P type of rice with 35 kg of Q type of rice. He then sold one-fifth of this mixture. In the remaining mixture, he again mixes P and Q type of rice in the ratio 2:3. Now the ratio of quantity of P type of rice to that of Q type of rice in the final mixture is 3:1. How much quantity of Q type of rice was added in the mixture?
   (a) 8 kg
   (b) 12 kg
   (c) 10 kg
   (d) 16 kg
   Ans: (b) 12 kg
   Solution: The problem involves multiple steps of mixing and ratio calculations. By carefully following the steps and applying the ratio rules, we find that 12 kg of Q type of rice was added.
4. If the difference between the present ages of Ram and Kush is 22 years and 4 years hence the age of Ram will be double the age of Kush, what is the average of their present ages?
   (a) 39.1 years
   (b) 33.4 years
   (c) 35.2 years
   (d) 37.5 years
   Ans: (d) 37.5 years
   Solution: Let the present age of Kush be ( x ) years. Then, Ram’s age is ( x + 22 ) years. According to the problem, ( x + 22 + 4 = 2(x + 4) ). Solving this equation gives ( x = 26 ). Therefore, Ram’s age is 48 years, and the average age is ( \frac{26 + 48}{2} = 37.5 ) years.
5. The sum of three numbers in an arithmetic progression (A.P) is -6 and their product is 24. Taking the positive value of the common difference as ‘d’, find the smallest of the three numbers.
   (a) -6
   (b) 1
   (c) 2
   (d) More than one of the above
   E) None of the above
   Ans: (a) -6
   Solution: Let the three numbers be ( m-d ), ( m ), and ( m+d ). Given ( 3m = -6 ) and ( m(m-(d)(m+(d) = 24 ). Solving these equations, we find ( m = -2 ) and ( d = 4 ). Thus, the numbers are -6, -2, and 2. The smallest number is -6.
6. Find the sum of all numbers divisible by 6 between 100 and 400.
   (a) 12,550
   (b) 12,450
   (c) 11,450
   (d) More than one of the above
   E) None of the above
   Ans: (b) 12,450
   Solution: The sequence of numbers divisible by 6 between 100 and 400 is an arithmetic progression with the first term ( a = 102 ) and the last term ( l = 396 ). The common difference ( d = 6 ). Using the formula for the sum of an arithmetic series, we find the sum to be 12,450.
7. A and B invest in a business in the ratio 3:2. If 5% of the total profit goes to charity and A’s share is Rs. 855, what is the total profit?
   (a) Rs. 500
   (b) Rs. 1000
   (c) Rs. 1500
   (d) Rs. 2000
   Ans: (c) Rs. 1500
   Solution: Let the total profit be ( P ). After giving 5% to charity, 95% of the profit is shared between A and B in the ratio 3:2. Therefore, ( 0.95P \times \frac{3}{5} = 855 ). Solving this equation gives ( P = 1500 ).
8. A bag contains 50 P, 25 P, and 10 P coins in the ratio 5:9:4, amounting to Rs. 206. Find the number of coins of each type respectively.
   (a) 360, 160, 200
   (b) 160, 360, 200
   (c) 200, 360, 160
   (d) 200, 160, 300
   Ans: (c) 200, 360, 160
   Solution: Let the number of 50 P, 25 P, and 10 P coins be ( 5x ), ( 9x ), and ( 4x ) respectively. The total value is ( 50 \times 5x + 25 \times 9x + 10 \times 4x = 20600 ) paise. Solving for ( x ), we find ( x = 40 ). Therefore, the number of coins is 200, 360, and 160.
9. Two numbers are respectively 20% and 50% more than a third number. What is the ratio of the two numbers?
   (a) 2:5
   (b) 3:5
   (c) 4:5
   (d) 5:4
   Ans: (c) 4:5
   Solution: Let the third number be ( x ). The first number is ( 1.2x ) and the second number is ( 1.5x ). The ratio is ( \frac{1.2x}{1.5x} = \frac{4}{5} ).
10. A problem is given to three students whose chances of solving it are ( \frac{1}{2} ), ( \frac{1}{3} ), and ( \frac{1}{4} ) respectively. What is the probability that the problem will be solved?
    (a) ( \frac{1}{4} )
    (b) ( \frac{1}{2} )
    (c) ( \frac{3}{4} )
    (d) ( \frac{7}{12} )
    Ans: (d) ( \frac{7}{12} )
    Solution: The probability that the problem will not be solved by any student is ( \left(1 – \frac{1}{2}\right) \left(1 – \frac{1}{3}\right) \left(1 – \frac{1}{4}\right) = \frac{1}{2} \times \frac{2}{3} \times \frac{3}{4} = \frac{1}{4} ). Therefore, the probability that the problem will be solved is ( 1 – \frac{1}{4} = \frac{3}{4} ).
    26. Find the odd man out: 2, 5, 10, 17, 26, 37, 50, 64
    (a) 50
    (b) 37
    (c) 26
    (d) 64
    Ans: (a) 50
    Solution: The sequence follows the pattern ( n^2 + 1 ). The correct sequence should be 2, 5, 10, 17, 26, 37, 50, 65. Therefore, 50 is the odd one out.
11. Directions (15-19): Study the following information carefully and answer the questions given below:Seven persons of different parties have voting in different days of a week which starts from Monday and ends on Sunday. At least three persons have voting after J who is from BJP. Three persons have voting between J and K who has voting just after the person who is from BSP. L has voting just before the person who is from AAP and just after the person who is from Congress. M has voting after the person who is from AAP but not on Saturday. N has voting before the person who is from SP and after the person who is from TDP. Person who is from NCP has voting before O and after P. Who among the following is from TDP?

    (a) J

    (b) K

    (c) L

    (d) None of these 

    Solutions (15-19):

    Sol.

    Days	Persons	Party
    Monday	P	TDP
    Tuesday	J	BJP
    Wednesday	N	NCP
    Thursday	O	Congress
    Friday	L	BSP
    Saturday	K	AAP
    Sunday	M	SP

     15. Ans. (d)

12. Which of the following party belongs to O?(a) BSP(b) Congress

    (c) SP

    (d) TDP

     Ans. (b)

13. In which of the following day the person who is from SP has voting?(a) Tuesday(b) Wednesday

    (c) Thursday

    (d) None of these

    Ans. (d) 

14. How many days gap between the voting of O and P?(a) One(b) Two

    (c) Three

    (d) Four

    Ans. (b) 

15. Four of the following five are alike in certain way and hence form a group, find the one which does not belong to that group?(a) M-SP(b) J-NCP

    (c) N-Congress

    (d) O-BSP 

    Ans. (a) 

16. If GOODNESS is coded as HNPCODTR. How can GREATNESS be written in that code?(a) HQFZSMFRT(b) HQFZUFRTM

    (c) HQFZUODTR

    (d) HQFZUMFRT 

    Ans. (a)

    Sol.9×3–3=24

    3×3–3=6 

17. Select the odd word/letters/number/number pair from the given alternatives.(a) Border Security Force(b) Central Reserve Police Force

    (c) Indo­Tibetan Border Police Force

    (d) Indian Air Force 

    Ans.(d)

    Sol. Except Indian Air Force other three are central Armed police force. 

18. Select the odd word/letters/number/number pair from the given alternatives.(a) JQ(b) HS

    (c) BX

    (d) GT 

    Ans.(c)

    Sol. Except BX other three are pair of corresponding opposite word. 

19. Select the odd word/letters/number/number pair from the given alternatives.(a) 8179(b) 7147

    (c) 8135

    (d) 9113 

    Ans.(d)

    Sol. The middle term is sum of first and last term.

    8179= 8+9=17 

20. A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.Hindi, ?, Telugu, Marathi, Tamil(a) English

    (b) Bengali

    (c) French

    (d) German 

    Ans.(b)

    Sol. Series of Indian regional language.

21. The World Braille Day is observed on:
    (a) 1st January
    (b) 2nd January
    (c) 3rd January
    (d) 4th January
    Ans: (d) 4th January
22. Which city is the most populous in India?
    (a) Delhi
    (b) Mumbai
    (c) Kolkata
    (d) Chennai
    Ans: (b) Mumbai
23. The tallest waterfall in India is:
    (a) Jog Falls
    (b) Dudhsagar Falls
    (c) Kunchikal Falls
    (d) Nohkalikai Falls
    Ans: (c) Kunchikal Falls
24. The World Water Day is observed on:
    (a) 20th March
    (b) 21st March
    (c) 22nd March
    (d) 23rd March
    Ans: (c) 22nd March
25. The right bank tributaries of the Ganga include:
    (a) Yamuna, Son, Ghaghra
    (b) Yamuna, Son, Ramganga
    (c) Yamuna, Son, Chambal
    (d) Yamuna, Son, Gandak
    Ans: (c) Yamuna, Son, Chambal
26. The left bank tributaries of the Ganga include:
    (a) Ghaghra, Gandak, Kosi
    (b) Yamuna, Ramganga, Ghaghra
    (c) Ghaghra, Gandak, Chambal
    (d) Yamuna, Gandak, Kosi
    Ans: (a) Ghaghra, Gandak, Kosi
27. The longest tributary of the Ganga is:
    (a) Yamuna
    (b) Son
    (c) Ghaghra
    (d) Kosi
    Ans: (a) Yamuna
28. The Gandak River originates from:
    (a) Yamunotri Glacier
    (b) Dhaulagiri
    (c) Mapchachungo Glacier
    (d) Milan Glacier
    Ans: (b) Dhaulagiri
29. The Nambor Wildlife Sanctuary is located in:
    (a) Bihar
    (b) Assam
    (c) Chhattisgarh
    (d) Goa
    Ans: (b) Assam
30. The Valmiki Wildlife Sanctuary is in:
    (a) Gujarat
    (b) Bihar
    (c) Haryana
    (d) Himachal Pradesh
    Ans: (b) Bihar
31. Correct Sequence:
    A. She was wishing
    B. for her
    C. for something
    D. that was not good
    Answer: acdb

     

32. Correct Sequence:
    A. I was certain
    B. the management meeting.
    C. be allowed to attend
    D. that subordinates would not
    Option
    A. abcd
    B. abdc
    C. adcb
    D. bcda
    Answer: A. abcd

     

33. The Proper sequence should be:
    P : early today
    Q : at least five persons were killed and 32 injured
    R : when a passenger train rammed into
    S : a stationary goods train
    Option
    A. PQRS
    B. QRSP
    C. RSPQ
    D. RSQP
    Answer: B. QRSP

     

34. A policeman
    P : to abide
    Q : if he has to do well,
    R : by the strict letters of the law
    S : cannot afford
    The Proper sequence should be:
    Option
    A. PRQS
    B. QSPR
    C. RQPS
    D. SPRQ
    Answer: B. QSPR

     

35. The Proper sequence should be:
    A. The managing director
    B. in listening to her
    C. was not interested
    D. explanation about why profits were lessening.
    Option
    a. abcd
    b. abdc
    c. acbd
    d. bcda
    Answer: c. acbd

     

36. A swathe of the white stuff
    A. stretching for maybe fifteen metres
    B. lay across the track in front of us
    C. and the dirt track reappeared
    D. before it petered out
    Option
    a. ABDC
    b. BCDA
    c. BADC
    d. DBAC
    Answer: c. BADC

     

37. Rearrange the following parts (1, 2, 3 and 4) in proper sequence to obtain a correct sentence.
    1. pending because it wasn’t
    2. Too many cases still lie
    3. is the convict
    4. confirmed that the accused really
    Answer: 2, 1, 4, 3

     

38. Rearrange the following parts (1, 2, 3 and 4) in the proper sequence to obtain a correct sentence.
    1. our country
    2. following greater than some
    3. Salman Khan has a fan
    4. of the best-paid sports person in
    Option
    a. 1, 3, 4, 2
    b. 3, 4, 2, 1
    c. 4, 1, 3, 2
    d. 3, 2, 4, 1
    Answer: d. 3, 2, 4, 1

     

39. Rearrange the following parts (1, 2, 3 and 4) in the proper sequence to obtain a correct sentence.
    1. held on all India basis
    2. appear the SSC examination
    3. every year many students from
    4. all over the country
    Option
    a. 1, 2, 4, 3
    b. 3, 4, 2, 1
    c. 2 , 3, 1, 4
    d. 2, 4, 1, 3
    Answer: b. 3, 4, 2, 1

     

40. Rearrange the following parts (1, 2, 3 and 4) in the proper sequence to obtain a correct sentence.
    1. the only creature
    2. laughter
    3. blessed with the power of
    4. Man is
    Option
    a. 2, 1, 3, 4
    b. 4, 1, 3, 2
    c. 1, 3, 2, 4
    d. 4, 3, 2, 1
    Answer: b. 4, 1, 3, 2
41. ମାଗି ଆଣିଲା ତିଅଣ ହାପୁରାଏ – ଏହା କେଉଁ ଅର୍ଥକୁ ପ୍ରକାଶ କରେ ?
    (a) ଶକ୍ତିଶାଳୀ
    (b) କ୍ଷଣସ୍ଥାୟୀ
    (c) ସୁଆଦିଆ
    (d) ଆମୋଦପ୍ରମୋଦ
    Ans: (d) ଆମୋଦପ୍ରମୋଦ
42. ପ୍ରତିହିଂସା ମନୋଭାବ ପୋଷଣ କରିବା – ଏହି ଅର୍ଥ ବୁଝାଉଥ୍ବା ରୂଢିଟି କେଉଁଟି ?
    (a) ରକ୍ତଚାଉଳ ଚୋବାଇବା
    (b) ଅହ‌ନ୍ତା ରଖିବା / ଅକସ ରଖିବା
    (c) ଛାଇ ନ ମାଡିବା
    (d) ନାକେଦମ କରିବା
    Ans: (b) ଅହ‌ନ୍ତା ରଖିବା / ଅକସ ରଖିବା
43. ବାକ୍ୟାଶରେ କ୍ରିୟାପଦ ନ ଥିଲେ କେଉଁ ରୂଢି ହୁଏ ?
    (a) କ୍ରିୟାତ୍ମକ ରୂଢି
    (b) କ୍ରିୟାହୀନ ରୂଢି
    (c) ତୁଳନାତ୍ମକ ରୂଢି
    (d) କ୍ରିୟାଯୁକ୍ତ ରୂଢି
    Ans: (b) କ୍ରିୟାହୀନ ରୂଢି
44. ଧୈର୍ଯ୍ୟ ଧରିବା – ଏହି ଅର୍ଥ ପ୍ରକାଶ କରୁଥ‌ିବା ରୂଢିଟି କେଉଁଟି ?
    (a) ଛାତି ପଥର କରିବା
    (b) ନଛୋଡ ବନ୍ଧା
    (c) ବାଆକୁ ବତା
    (d) ହୁଙ୍କାପିଟା
    Ans: (a) ଛାତି ପଥର କରିବା
45. ବାଆକୁ ବତା – ଏହି ରୂଢିଟି କେଉଁ ଅର୍ଥ ପ୍ରକାଶ କରେ ?
    (a) ଖୁବ କଷ୍ଟ କଥା
    (b) ଅନ୍ୟାୟ ବିଚାର
    (c) କ୍ଷୀଣ ଆଶ୍ରୟ
    (d) ଠକିବା
    Ans: (c) କ୍ଷୀଣ ଆଶ୍ରୟ
46. ତାକୁ କିଛି କୁହ ନାହିଁ ସେ ଭୟରେ __ ପଡିଲାଣି ?
    (a) କଳାକାଠ
    (b) ମିଛୁଆ
    (c) ତମ୍ବା ନାଲି
    (d) ଚୋର ମୁହାଁ
    Ans: (a) କଳାକାଠ
47. ବୁଦ୍ଧି ବଣା ହେବା – ଅର୍ଥ ପ୍ରକାଶ ପାଇଁ କେଉଁ ରୂଢି ବ୍ୟବହାର କରାଯାଏ ?
    (a) ଅକଲ ଗୁଡୁମ
    (b) ବାଆକୁ ବତା
    (c) ଅନ୍ଧ ବୁଝାବଣା
    (d) କଳାକନା ବୁଲାଇବା
    Ans: (a) ଅକଲ ଗୁଡୁମ
48. ‘ଅନୁଜ’ ଶବ୍ଦରେ ‘ଅନୁ’ ଉପସର୍ଗ କେଉଁ ଅର୍ଥରେ ବ୍ୟବହୃତ?
    A) ମନ୍ଦ
    B) ଦୁଃଖ
    C) ନିନ୍ଦା
    D) ପାଶ୍ଚାତ
    Ans: D) ପାଶ୍ଚାତ
49. ‘ନିମୀଳନ’ ଶବ୍ଦର ବିପରୀତ ଶବ୍ଦ ଲେଖ ।
    A) ମିଳନ
    B) ମୀଳନ
    C) ଉନ୍ମୀଳନ
    D) ଅମିଳନ
    Ans: C) ଉନ୍ମୀଳନ
50. ‘ଓଜନିଆ’, ‘ବୃହସ୍ପତି’ ଶବ୍ଦଦ୍ୱୟକୁ ବୁଝାଉଥିବା ଏକ ପ୍ରତିଶବ୍ଦ ଲେଖ।
    A) ଗ୍ରହ
    B) ଗୁରୁ
    C) ଶ୍ରେଷ୍ଠ
    D) ଗ୍ରହଶ୍ରେଷ୍ଠ
    Ans: B) ଗୁରୁ