Alligation or Mixture Questions for IBPS PO, SO, Clerk Exams - 1

Question: 1

In what ratio must tea at Rs. 62 per kg be mixed with tea at Rs. 72 per kg so that the mixture must be worth Rs. 64.50 per kg?

(A) 3 : 1

(B) 3 : 2

(C) 4 : 3

(D) 5 : 3

Ans: A

Question: 2

How many kilograms of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture of Rs. 9.24 per kg?

(A) 36 kg

(B) 42 kg

(C) 54 kg

(D) 63 kg

Ans: D

Question: 3

One quality of wheat at Rs. 9.30 per kg is mixed with another quality at a certain rate in the ratio 8 : 7. If the mixture so formed be worth Rs. 10 per kg. What is the rate per kg of the second quality of wheat?

(A) Rs. 10.30

(B) Rs. 10.60

(C) Rs. 10.80

(D) Rs. 11

Ans: C

Question: 4

A sum of Rs. 64 is made up of 80 coins which are either 100 paise or 50 paise coins. How many coins are of 50 paise?

(A) 22

(B) 32

(C) 42

(D) 52

Ans: B

Question: 5

Gold is 19 times as heavy as water and copper is 9 times. In what ratio should these metals be mixed so that the mixture may be 15 times as heavy as water?

(A) 2 : 1

(B) 3 : 2

(C) 4 : 3

(D) 5 : 4

Ans: B