Mathematics Questions & Answers for Competitive Exams

221. A sum of money at compound interest doubles itself in 4 years. In how many years does the sum become 8 times of itself at the same rate of interest?

(A) 15
(B) 12
(C) 8
(D) 10

222. If the sum of two numbers x and y is 12 and their product is 27, then find the sum of their cubes.

(A) 657
(B) 576
(C) 765
(D) 756

223. In ∆ABC, P is a point on AB such that PB : AP = 3 : 4 and PQ is parallel to AC. If AR and QS are perpendicular to PC and QS = 9 cm, what is the length (in cm) of AR?

(A) 28
(B) 35
(C) 21
(D) 14

224. Find the value of 12 + 24 ÷ 2 - 7 × 30 ÷ 6 + (5 + 4) × 8 + 8 ÷ 8 - 8.

(A) 45
(B) 85
(C) 54
(D) 58

225. In an election, 12% of the voters in the voter list did not cast their votes, whereas 84 voters cast their ballot papers blank. There were only two candidates: Ramagya and Shravan. The winner, Ramagya, was supported by 54% of all the voters in the list. He got 1456 more votes than his rival, Shravan. Find the total number of voters in the list.

(A) 5690
(B) 6670
(C) 7860
(D) 6860

226. Find the single discount rate percentage equivalent to the successive discounts of 10%, 20% and 20%.

(A) 42.4%
(B) 54.6%
(C) 40%
(D) 50%

227. Study the given table and answer the question that follows. The table shows the number of students studying in 6 different classes of 6 different schools. The number of students studying in class X from school P forms approximately what percentage of the total number of students studying in class X from all schools together?

(A) 8%
(B) 24%
(C) 32%
(D) 16%

228. The base of a parallelogram is twice its height. If the area of the parallelogram is 338 cm2, then find its height (in cm).

(A) 13
(B) 11
(C) 14
(D) 12

229. A 12 litre solution of acid and water contains 30% acid. How much water (in litres) must be added to get a solution having 20% acid?

(A) 6
(B) 3
(C) 5
(D) 4

230. A shopkeeper offers 3 schemes of discounts to his customers. Which of the following schemes will fetch the minimum discount percentage? A)Two successive discounts of 24% and 27%. B) Buy 5 get three free. C) Buy 6 and get 10.

(A) A
(B) C
(C) Both A and C
(D) B

Total Quizz:- 2541

Mathematics

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221. A sum of money at compound interest doubles itself in 4 years. In how many years does the sum become 8 times of itself at the same rate of interest?

222. If the sum of two numbers x and y is 12 and their product is 27, then find the sum of their cubes.

223. In ∆ABC, P is a point on AB such that PB : AP = 3 : 4 and PQ is parallel to AC. If AR and QS are perpendicular to PC and QS = 9 cm, what is the length (in cm) of AR?

224. Find the value of 12 + 24 ÷ 2 - 7 × 30 ÷ 6 + (5 + 4) × 8 + 8 ÷ 8 - 8.

226. Find the single discount rate percentage equivalent to the successive discounts of 10%, 20% and 20%.

228. The base of a parallelogram is twice its height. If the area of the parallelogram is 338 cm2, then find its height (in cm).

229. A 12 litre solution of acid and water contains 30% acid. How much water (in litres) must be added to get a solution having 20% acid?

230. A shopkeeper offers 3 schemes of discounts to his customers. Which of the following schemes will fetch the minimum discount percentage? A)Two successive discounts of 24% and 27%. B) Buy 5 get three free. C) Buy 6 and get 10.

Total Quizz:- 2541

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221. A sum of money at compound interest doubles itself in 4 years. In how many years does the sum become 8 times of itself at the same rate of interest?

222. If the sum of two numbers x and y is 12 and their product is 27, then find the sum of their cubes.

223. In ∆ABC, P is a point on AB such that PB : AP = 3 : 4 and PQ is parallel to AC. If AR and QS are perpendicular to PC and QS = 9 cm, what is the length (in cm) of AR?

224. Find the value of 12 + 24 ÷ 2 - 7 × 30 ÷ 6 + (5 + 4) × 8 + 8 ÷ 8 - 8.

226. Find the single discount rate percentage equivalent to the successive discounts of 10%, 20% and 20%.

228. The base of a parallelogram is twice its height. If the area of the parallelogram is 338 cm2, then find its height (in cm).

229. A 12 litre solution of acid and water contains 30% acid. How much water (in litres) must be added to get a solution having 20% acid?

230. A shopkeeper offers 3 schemes of discounts to his customers. Which of the following schemes will fetch the minimum discount percentage? A)Two successive discounts of 24% and 27%. B) Buy 5 get three free. C) Buy 6 and get 10.

Total Quizz:- 2541

Mathematics

English Topic Wise Quizz

Current Affairs Topic Wise Quizz

Hindi Topic Wise Quizz

Important Links

Subjects

Subjects

Exams