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.
Top Questions to Master Before the Test for OSSSC RI, ARI, AMIN 21 September 2024
- What will be the simple interest on ₹5000 at a rate of 6% per annum for 3 years?(a) ₹750
(b) ₹900
(c) ₹1000
(d) ₹600Ans: (b) ₹900
Solution:
Simple Interest (SI) = (P × R × T) / 100
= (5000 × 6 × 3) / 100 = ₹900 - The compound interest on ₹10,000 at 5% per annum for 2 years is:(a) ₹1025
(b) ₹1050
(c) ₹1100
(d) ₹1200Ans: (a) ₹1025
Solution:
CI = P [(1 + R/100)^T – 1]
= 10000 [(1 + 5/100)^2 – 1]
= 10000 [1.1025 – 1]
= ₹1025 - The LCM of 12, 15, and 20 is:(a) 60
(b) 120
(c) 180
(d) 240Ans: (b) 120
Solution:
LCM of 12, 15, and 20 is the smallest number divisible by all:
Prime factors of 12 = 2² × 3
Prime factors of 15 = 3 × 5
Prime factors of 20 = 2² × 5
LCM = 2² × 3 × 5 = 120 - The average of 5 numbers is 18. If one of the numbers is 22, what is the sum of the remaining four numbers?(a) 72
(b) 68
(c) 80
(d) 90Ans: (b) 68
Solution:
Total sum of 5 numbers = 18 × 5 = 90
Sum of the remaining 4 numbers = 90 – 22 = 68 - A can complete a task in 12 days and B in 15 days. How long will it take for them to complete the task if they work together?(a) 6 days
(b) 6.67 days
(c) 7 days
(d) 8 daysAns: (b) 6.67 days
Solution:
A’s 1 day work = 1/12, B’s 1 day work = 1/15
Combined 1 day work = (1/12 + 1/15) = (5 + 4)/60 = 9/60 = 3/20
So, they will take 20/3 = 6.67 days to complete the work. - If 25% of a number is 45, what is the number?(a) 160
(b) 180
(c) 200
(d) 240Ans: (b) 180
Solution:
Let the number be X.
25% of X = 45
X = (45 × 100) / 25 = 180 - If a product costs ₹500 and is sold at a 20% profit, what is the selling price?(a) ₹550
(b) ₹600
(c) ₹625
(d) ₹700Ans: (b) ₹600
Solution:
Selling Price (SP) = Cost Price (CP) + Profit
= ₹500 + 20% of ₹500 = ₹500 + ₹100 = ₹600 - A man buys an article for ₹240 and sells it for ₹300. What is his profit percentage?(a) 20%
(b) 25%
(c) 30%
(d) 35%Ans: (b) 25%
Solution:
Profit = Selling Price – Cost Price
Profit % = (Profit / Cost Price) × 100
= (60 / 240) × 100 = 25% - The ratio of two numbers is 3:4. If their sum is 56, what is the larger number?(a) 21
(b) 24
(c) 32
(d) 42Ans: (c) 32
Solution:
Let the numbers be 3x and 4x.
3x + 4x = 56
7x = 56
x = 8
The larger number = 4x = 32 - What is the area of a rectangle with a length of 8 cm and a breadth of 5 cm?(a) 30 cm²
(b) 35 cm²
(c) 40 cm²
(d) 45 cm²Ans: (c) 40 cm²
Solution:
Area of rectangle = Length × Breadth = 8 × 5 = 40 c - ନିମ୍ନଲିଖିତ ଶବ୍ଦ ମଧ୍ୟରୁ କ୍ରିୟାଜ ବିଶେଷଣ ପଦଟିକୁ ଚିହ୍ନଟ କର |
A) ମେଧାବୀ
B) ସାମାନ୍ୟ
C) ଶାନ୍ତଶିଷ୍ଟ
D) ଜଣାଶୁଣା
Ans: D) ଜଣାଶୁଣା - ବିଶେଷ୍ୟ ପଦ ପରେ ବିଶେଷଣ ପଦ ବ୍ୟବହୃତ ହେଲେ ତାକୁ କି ପ୍ରକାର ବିଶେଷଣ କୁହାଯାଏ?
A) କ୍ରିୟା ବିଶେଷଣ
B) ବିଧେୟ ବିଶେଷଣ
C) ବିଶେଷ୍ୟ ରୂପୀ ବିଶେଷଣ
D) ଅବ୍ୟୟର ବିଶେଷଣ
Ans: B) ବିଧେୟ ବିଶେଷଣ - ଆହାର ଓ ବିହାର- ଉଭୟେ ହୁ ଧାତୁରୁ ଗଠିତ । ଏହି ଦୁଇଟିରେ ଅର୍ଥଗତ ପାର୍ଥକ୍ୟ କାହିଁକି ଦେଖାଯାଏ ?
A . ଧାତୁ ଯୋଗୁଁ
B . ପ୍ରତ୍ୟୟ ଯୋଗୁଁ
C . ଉପସର୍ଗ ଯୋଗୁଁ
D . ପ୍ରତ୍ୟୟ ଓ ଜପସର୍ଗ ଯୋଗୁଁ
Ans: C . ଉପସର୍ଗ ଯୋଗୁଁ - ‘ଫାଙ୍କା ଆୱାଜ’ ରୁଢିଟିର ଅର୍ଥ କ’ଣ?
A) ଖାଲି ମାଠିଆ
B) ମିଛ କଥା
C) ବୃଥା ଧମକ
D) ଫାଙ୍କା ସ୍ଥାନରେ ଶବ୍ଦ କରିବା
Ans: C) ବୃଥା ଧମକ - ନିମ୍ନଲିଖିତତ କେଉଁ ପୂର୍ବପଦଟି ଏକ ଅବ୍ୟୟ?
A) ଅଭି
B) ଅପି
C) ପୁନଃ
D) ଅନୁ
Ans: C) ପୁନଃ - କାବେରୀକୁ ଦକ୍ଷିଣ ଭାରତର ଗଙ୍ଗା କୁହାଯାଏ ରେଖାଙ୍କିତ ଶବ୍ଦଟି କି ପ୍ରକାର ବିଶେଷ୍ୟ ଅଟେ?
A) ନାମ ବାଚକ
B) ଗୁଣ ବାଚକ
C) ଜାତି ବାଚକ
D) ବସ୍ତୁ ବାଚକ
Ans: C) ଜାତି ବାଚକ - ଯେଉଁ ଶବ୍ଦ ବ୍ୟୁତ୍ପତ୍ତି ବା ପ୍ରକୃତି ପ୍ରତ୍ୟୟ ସମ୍ବନ୍ଧୀୟ ଅର୍ଥକୁ ପ୍ରକାଶ ନକରି ଅନ୍ୟ ଅର୍ଥ ପ୍ରକାଶ କରେ ତାହାକୁ କି ଶବ୍ଦ କହନ୍ତି?
A) ମୌଳିକ
B) ଯୌଗିକ
C) ଯୋଗରୂଢ଼
D) ରୂଢି
Ans: D) ରୂଢି - ନିମ୍ନଲିଖିତ ମଧ୍ୟରୁ କେଉଁଟି ‘ଅର୍ବାଚୀନ’ ଶବ୍ଦର ବିପରୀତ ଶବ୍ଦ?
A) ନବୀନ
B) ନୂତନ
C) ପ୍ରସୂନ
D) ପ୍ରାଚୀନ
Ans: D) ପ୍ରାଚୀନ - ଧ୍ଵନିର ଲିଖିତ ରୂପକୁ କଣ କୁହାଯାଏ?
A) ମାତ୍ରା
B) ବର୍ଣ୍ଣ
C) ଭାଷା
D) ଶବ୍ଦ
Ans: B) ବର୍ଣ୍ଣ - ଯେଉଁ ଶବ୍ଦ ବ୍ୟୁତ୍ପତ୍ତି ବା ପ୍ରକୃତି ପ୍ରତ୍ୟୟ ଗତ ଅର୍ଥକୁ ପ୍ରକାଶ କରେ ତାହାକୁ କି ଶବ୍ଦ କୁହାଯାଏ?
A) ରୂଢ଼
B) ଯୋଗରୂଢ଼
C) ମୌଳିକ
D) ଯୌଗିକ
Ans: D) ଯୌଗିକ - Consider the given statement/s to be true and decide which of the given conclusions/assumptions can definitely be drawn from the given statement.Statement: Poverty is a symptom as well as a consequence of social disorder.Assumptions:
- Poverty is a type of social order
- Poverty is related to social order
(a) only I assumption is correct
(b) only assumption II is correct
(c) Both assumptions I and II are correct
(d) Neither assumption I nor II is correct
Ans.(d)
Sol. Neither assumption I nor II is correct
- Directions (Q12-13): In each of the following, a series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.16. 625, 5, 125, 25, 25, ?, 5(a) 5(b) 25
(c) 125
(d) 625
Ans.(c)
Sol. The given sequence is a combination of two series
And II. 5, 25, ?
The pattern I is 5 while the pattern II is ×5.
So, missing term = 25 × 5 = 125
- Saturn, Uranus, Neptune, ?(a) Earth(b) Venus(c) Mars(d) Mercury
Ans.(a)
Sol. According to size of planet in decreasing order.
- Some equations are solved on the basis of a certain system. For the same basis, find the correct answer for the unsolved equation. If 837 = 452 and 206 = 769, then 708 ÷ 77 = ?(a) 9(b) 10(c) 11(d) 12
Ans.(d)
Sol.
- Arrange the following words as per order in the dictionary.
- Page 2. Pagan
- Palisade 4. Pageant 5. Palate
(a) 1, 4, 2, 3, 5
(b) 2, 4, 1, 3, 5
(c) 1, 4, 2, 5, 3
(d) 2,1, 4, 5, 3
Ans.(d)
Sol. Pagan, Page, Pageant, Palate, Palisade.
- What is the next number in the series: 2, 4, 8, 16, ___?
(a) 24
(b) 32
(c) 64
(d) 128
Ans: (b) 32
Sol: Each number is being doubled to obtain the next number in the series. So, 16 * 2 = 32. - If all cats are dogs and some dogs are birds, then which statement is true?
(a) All birds are cats.
(b) Some cats are birds.
(c) Some cats are not birds
(d)Either b or c
Ans: (c) (d)Either b or c
Sol: From the given statements, it can be inferred that there exists at least one cat which is also a bird or may not be a cat. - If 5 + 3 = 28, 9 + 1 = 810, then 8 + 6 = ?
(a) 2140
(b) 214
(c) 48
(d) 40
Ans: (b) 214
Sol: The pattern follows: (a + (b) = (a-(b)a+b. So, (8 + 6) = (8-6)8+6 = 214. - In a certain code language, “PENCIL” is written as “RGPEKN”. What is “PAPER” written as?
(a) RCRGT
(b) RCQGP
(c) RCBGP
(d) RCBHP
Ans: (a) RCRGT
Sol: Each letter in the word is replaced by the letter that comes two steps ahead in the English alphabet. - If a triangle has angles measuring 60°, 70°, and 50°, which type of triangle is it?
(a) Equilateral
(b) Isosceles
(c) Scalene
(d) Right-angled
Ans: (c) Scalene
Sol: Scalene triangles have all sides and angles different. - Given below are six sentences, out of which sentences A and F are in the correct position. Sentences B, C, D, and E are in a jumbled order. Select the option that gives the correct order.
A. Folk tales offer lots of advice.
B. Most of them deliver the message clearly.
C. The reason was that he was not properly dressed.
D. There is a story of Birbal not being allowed to attend the king’s free lunch.
E. This happened despite his high intellectual abilities.
F. The advice thus conveyed is ‘Don’t judge a book by its cover.’
(a) ABCDEF(b) ACEDBF(c) ADEBCF(d) ABDCEFAns: D - My sister got ______ best student award.
(a) the
(b) an
(c) a
(d) None Of These
Ans: (a) the - Change the speech “Can you pay him in cash?” Mama said to me ?
(a) Mama asked me if he could pay me in cash.
(b) Mama asked him if I can pay him in cash.
(c) Mama asked me if I could pay him in cash.
(d) Mama asked him if I should pay him in cash.
Answer: Mama asked me if I could pay him in cash. - The chairman emphasised on the importance of hard work for success.
(a) stressed on
(b) emphasised
(c) emphasised about
(d) No improvement
Ans: (b) emphasised - She did not let her fears ____ her from pursuing her dreams.
(a) dissuade
(b) distract
(c) deter
(d) distance
Ans: (c) deter - The book is an ____ study of modern politics.
(a) exhaustive
(b) exhausted
(c) exhausting
(d) exhaust
Ans: (a) exhaustive - Despite the heavy workload, he ____ to take a day off.
(a) refused
(b) declined
(c) insisted
(d) asked
Ans: (c) insisted - Many of the boys from our school has participated in the competition.
(a) Many of
(b) has
(c) participated
(d) No error
Ans: (b) has - Identify the incorrectly spelt word:
(a) Accommodate
(b) Priviledge
(c) Embarrass
(d) Necessary
Ans: (b) Priviledge - When she was in the university, she ________ wake up early in the morning everyday.
(a) should
(b) would
(c) will
(d) would have
Ans. (b) would - Which Himalayan range is home to the Dal Lake and Kashmir Valley?
A) Himadri
B) Himachal
C) Shivalik
D) Pir Panjal
Answer: D) Pir Panja - Who is the ex-officio Chairman of the Rajya Sabha?
(a) President of India
(b) Vice President of India
(c) Prime Minister of India
(d) Speaker of the Lok Sabha
Ans: (b) Vice President of India - Which of the following is not a component of India’s money supply (M3)?
(a) Currency with the public
(b) Demand deposits with banks
(c) Time deposits with banks
(d) Other deposits with the Reserve Bank of India (RBI)
Ans: (c) Time deposits with banks - Which gas is responsible for the greenhouse effect on Earth?
(a) Oxygen (O2)
(b) Nitrogen (N2)
(c) Carbon dioxide (CO2)
(d) Hydrogen (H2)
Ans: (c) Carbon dioxide (CO2) - The Tropic of Cancer passes through which Indian states?
(a) Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh
(b) Maharashtra, Telangana, Andhra Pradesh, Odisha
(c) West Bengal, Jharkhand, Bihar, Uttar Pradesh
(d) Karnataka, Tamil Nadu, Kerala, Goa
Ans: (a) Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh - The headquarters of the United Nations Educational, Scientific and Cultural Organisation (UNESCO) is located in:
(a) Geneva, Switzerland
(b) New York, USA
(c) Paris, France
(d) Vienna, Austria
Ans: (c) Paris, France - Which country became the 55th member of the African Union on January 30, 2024?
(a) Ethiopia
(b) Morocco
(c) Nigeria
(d) South Africa
Ans: (b) Morocco - The headquarters of the Universal Postal Union is located in:
(a) Geneva, Switzerland
(b) New York, USA
(c) Berne, Switzerland
(d) Paris, France
Ans: (c) Berne, Switzerland - Kanwar Lake, a Ramsar site, is located in which state?
(a) Gujarat
(b) Haryana
(c) Bihar
(d) Assam
Ans: (c) Bihar - The headquarters of the Association of Southeast Asian Nations (ASEAN) is located in:
(a) Jakarta, Indonesia
(b) Kuala Lumpur, Malaysia
(c) Bangkok, Thailand
(d) Hanoi, Vietnam
Ans: (a) Jakarta, Indonesia
