If you are preparing for Defence Exam, then here you can practice Best Top 20 Multiple Choice Questions on Mathematics and improve your preparation.
Question 1: A line which cuts a pair of parallel lines is called
(A) tangent
(B) chord
(C) traversal
(D) intersector
Question 2: An angle whose value is ____, is called complete angle.
(A) 180°
(B) 240°
(C) 360°
(D) none of the above
Question 3: The areas of two similar triangles are 81 sq. cm and 49 sq. cm. Find the ratio of their corresponding heights.
(A) 9:7
(B) 7:9
(C) 6:5
(D) 81:49
Question 4: Consider ΔABD such that angle ADB = 20° and C is a point on BD such that AB=AC and CD=CA. Then the measure of angle ABC is
(A) 30°
(B) 40°
(C) 45°
(D) 60°
Question 5: If the length and breadth of a rectangle are increased by a% and b% respectively, then the area will be increased by
(A) (a-b+2ab/100)%
(B) (a+b+2ab/100)%
(C) (a+b+ab/100)%
(D) (a-b+ab/100)%
Multiple Choice Questions
Question 6: A, B and C can complete a piece of work in 14, 6 and 12 days respectively. Working together, they will complete the work in
(A) 19/9 days
(B) 27 days
(C) 28/9 days
(D) 25/8 days
Question 7: If Px = Qy = Rz and Q/P = R/Q, then 2z/(x+z) = ?
(A) y/z
(B) y/x
(C) x/y
(D) z/y
Question 8: A shopkeeper purchases 15 mangoes for Rs. 10 and sells them at 10 mangoes for Rs. 15. Thus, he earns a profit of
(A) 50%
(B) 75%
(C) 80%
(D) 125%
Question 9: 4950/6 + 112 x 1.75 = ? x 2
(A) 510.5
(B) 505.2
(C) 515.5
(D) none of the above
Question 10: If a certain sum of money can become 5 times of its principal in 10 years, then the rate of interest is
(A) 20%
(B) 30%
(C) 40%
(D) 50%
Multiple Choice Questions
Question 11: An amount of Rs. 10,000 becomes Rs. 20,736 in 2 years. If the rate of interest is compounded half yearly, what is the annual rate of interest?
(A) 25%
(B) 20%
(C) 40%
(D) 30%
Question 12: What will come in the place of question mark (?) in the following series? 2, 5, 7, 12, 19, 31, 50, ?
(A) 81
(B) 74
(C) 69
(D) none of the above
Question 13: In an equilateral triangle has the height of 12 cm then what is the area of the triangle?
(A) 42√3 c.c.
(B) 48√3 c.c.
(C) 24√3 c.c.
(D) 34√3 c.c.
Question 14: The monthly income and monthly expenditure ratio of A and B are 5:6 and 4:5 respectively. If both of them can have Rs. 500 as monthly savings, then what is the income of A?
(A) Rs. 3,000
(B) Rs, 500
(C) Rs. 5,000
(D) Rs. 2,500
Question 15: Find out the least number which when multiplied by 45, the result becomes a perfect square.
(A) 9
(B) 15
(C) 5
(D) None of the above
Multiple Choice Questions
Question 16: (175)2 – (75)2 = ?
(A) 5000
(B) 20000
(C) 25000
(D) None of the above
Question 17: If a = (√3+1)/(√3-1) and b = (√3-1)/(√3+1) then (a2+ab+b2)/(a2-ab+b2) = ?
(A) 15/11
(B) 17/11
(C) 19/11
(D) 1
Question 18: If the fractions 3/5, 2/3, ¼, 5/7 and 6/11 are arranged in ascending order of their values, then which one will be the fourth
(A) 3/5
(B) 1/4
(C) 5/7
(D) 2/3
Question 19: 1 hectare = ?
(A) 1000 m2
(B) 10000 m2
(C) 100000 m2
(D) None of the above
Question 20: The sum of two numbers is 24 and the sum of their squares is 386, then one number is
(A) 17
(B) 19
(C) 9
(D) 11
Multiple Choice Questions, Multiple Choice Questions, Multiple Choice Questions
Multiple Choice Questions on Mathematics – Defence Exam Answer Key: –
| Question No. | Answer | Question No. | Answer |
| Question 1 | C | Question 11 | C |
| Question 2 | C | Question 12 | A |
| Question 3 | A | Question 13 | C |
| Question 4 | B | Question 14 | D |
| Question 5 | C | Question 15 | C |
| Question 6 | C | Question 16 | C |
| Question 7 | B | Question 17 | D |
| Question 8 | D | Question 18 | D |
| Question 9 | A | Question 19 | B |
| Question 10 | C | Question 20 | B |
