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Maths Questions for DSSSB Exam :30th June 2018(solutions)

Maths Questions for DSSSB Exam :30th June 2018(solutions)_30.1
Dear Students!!! There is most general as well as a scoring section in all the competitive entrance examinations in the teaching field i.e “Mathematics”.Because in this section only one thing is work i.e your accuracy and that could be nourished with the daily practice. So, for this, we are providing you the daily quiz for all teaching exams i.e CTET Exam 2018, DSSSB Exam & amp; STET Exams.
Q1. A lesson plan on unit of “Mensuration” includes one of the instructional objective as follows:
“Learners will be able to understand the application of Mathematics” 

This instructional objective is 
(a) appropriate as one must be able to apply the knowledge gained
(b) appropriate, as the objective is vague and it defined 
(c) appropriate, as all the units of Mathematics aim at this only 
(d) appropriate, as unit of “Mensuration” has lots of application in day-to-day life 
Q2. In class VII, a teacher taught the ‘properties of all types of quadrilaterals’. In the class test that followed after the unit, the teacher asked the problems on construction of quadrilateral. 

No one in the class was able to perform well in the test. The reason may be: 
(a) the teacher is not able to create the interest of the students in this unit 
(b) the students were not serious about the class-test and had not prepared well 
(c) all students of the class are dull 
(d) there is gap between instructions given in class and the assessment conducted 
Q3. Identify the open-ended problem. 
(a) Poonam makes a cuboid of dimensions 5 cm, 2 cm, 5 cm. How many such cuboids are required to form a cube? 
(b) Find the cube-root of 512 using prime factorization method 
(c) Find the cube of 9
(d) Write any 5 numbers whose cube is more than 64 
Q4. Present NCERT textbooks on Mathematics are written keeping in mind the recommendations of 
(a) syllabus prescribed by CBSE in 2006 
(b) syllabus prescribed by State Board in 2006 
(c) National Curriculum Framework, 2005 
(d) National Policy on Education, 1986 
Q5. “How does a square form a parallelogram? Explain.” 
The students are asked to write the answer about the question. The objective of the teacher is 
(a) exposing the students to open-ended questions 
(b) improving the writing skills of the students of the students 
(c) giving an opportunity to students to think and reflect 
(d) making the classroom less interactive 
Q6. 12 men can complete a work in 90 days. 30 days after they started work, 2 men left and 8 men joined. How many days will it take to complete the remaining work?
(a) 90 days
(b) 60 days
(c) 40 days
(d) 50 days
Q7. A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. In how many days C alone can do the same work?
(a) 5 days
(b) 6 days
(c) 10 days
(d) 12 days
Q8. If A: B = 2: 1 & A: C = 1 : 3, then A : B : C
(a) 2: 1: 6
(b) 1: 3: 2
(c) 1: 2: 6
(d) 3: 2: 1
Q9. Two numbers are in ratio 5: 8, If their difference is 48, then the smallest numbers is
(a) 64
(b) 80
(c) 96
(d) 128
Q10. The sides of a triangle are in the ratio of 7: 9: 12. The difference between the lengths of largest and smallest sides is 15 cm. The length of the largest sides would be:
(a) 36 cm
(b) 12 cm
(c) 60 cm
(d) 24 cm
S1. Ans.(d)
S2. Ans.(d)
S3. Ans.(a)
S4. Ans.(c) 
S5. Ans.(c)

S6. Ans.(c)
Sol. Efficiency of 12 Men = 1/90
Work completed in 30 days = 30/90
= 1/3
Remaining work = 1 – 1/3
= 2/3
Remaining men 12-2+8= 18
12×90=(18×Days)/ (2/3)
12×90= (18×3)/2×Days

Days = 40 days
Maths Questions for DSSSB Exam :30th June 2018(solutions)_40.1
S8. Ans.(a)
Sol. A : B = (2 : 1) × 1
A : C = (1 : 3) × 2
A : B = 2 : 1
A : C = 2 : 6
A : B : C = 2 : 1 : 6
S9. Ans.(b)
Sol. 8x – 5x = 48
3x = 48
x = 16
Smallest no. = 16 × 5
= 80
S10. Ans.(a)
Sol. 12x – 7x= 5x
5x = 15
x = 3
Largest side = 12 × 3
= 36