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Mathematical Series Questions for Competitive Exams

5 months ago 155.7K Views
Q :  

If A: B=3: 4, B:C =2:3 then what is the value of A +B: B+C: C+A?

(A) 5 :6 :7

(B) 7 : 10 : 9

(C) 7 : 5: 6

(D) 3 : 4 : 6

Correct Answer : B

Q :  

A is 40% less than B, and C is 40% of the sum of A and B. The difference between A and B is what percentage of C?

(A) 64 %

(B) 62.5 %

(C) 60.5 %

(D) 60%

Correct Answer : B
Explanation :

The Ratio will be A: B :C=60 : 100 : 64

Then 40/64*100=62.5%


Q :  

If one number is 50 percent less than X and the other numbers are 20 percent less than X. What is the ratio of both the numbers?

(A) 5 : 8

(B) 2 : 3

(C) 3 : 8

(D) 3 : 5

Correct Answer : A

Q :  

The ratio of incomes of A and B is 3:5, whereas the ratio of their expenditures is 4:7 respectively. If A and B save Rs. 16,000 and Rs. 26,000 respectively, then what is the different between their expenditures?

(A) 5400

(B) 6800

(C) 5000

(D) 6000

Correct Answer : D

Q :  

A number is divided into three parts such that three times of the first part, six times of the second part and eight times the third part are equals to each other. If the first part is Rs. 1600, what is the third part?

(A) 450

(B) 600

(C) 750

(D) 900

Correct Answer : B

Q :  

If Rs 1380 is divided into A, B and C in such a way that A gets 5 times B's share and 3 times C's share. Then what is the value of C parts?

(A) Rs. 300

(B) Rs.600

(C) Rs.900

(D) Rs.180

Correct Answer : A

Q :  

The ratio of two number is 3 :5 . If 6 added to both the number then ratio become 2 :3 then find out the number?

(A) 21 and 35

(B) 30 and 50

(C) 24 and 40

(D) 18 and 30

Correct Answer : D

Q :  

Hari and Mohan contested a panchayat election. Hari got 52 percent votes and defeated Mohan by a margin of 90 votes. What was the total turnout in the election.

(A) 2500

(B) 2200

(C) 2250

(D) 2100

Correct Answer : C

Q :  

A student scored 32 percent and failed by 8 Marks. If he had scored 36 percent marks, he would have passed by 2 marks. What is the passing score?

(A) 75

(B) 88

(C) 70

(D) 85

Correct Answer : B

Q :  

In an examination, 30 percent of the students failed in English and 25 percent of the students failed in mathematics. If 15 percent of the candidates failed in both subjects, then what percentage of students passed in both subject.

(A) 40 %

(B) 50 %

(C) 30 %

(D) 60 %

Correct Answer : D

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