# Mixture and Alligations Exercise I

Ques 1

Two vessels A and B contain a mixture of milk and water in the ratio 4:5 and 5:1.If both vessels are mixed in the ratio 5:2 then find the ratio of milk and water in new mixture?

a) 4:5
b) 5:4
c) 3:4
d) 4:3

b is the correct option

Ques 2

In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?

a) 3:2
b) 6:7
c) 5:6
d) 2:3

a is the correct option

Ques 3

200 litres of mixture contains 15% water and the rest is milk. The amount of milk that must be added so that the resulting mixture contains 87.5% milk is?

a) 30 litres
b) 35 litres
c) 40 litres
d) 45 litres

c is the correct option

Ques 4

A sum of Rs. 41 was divided amount 50 children. Each boy gets 90 paise and each girl 65 paise. The number of boys is?

a) 32
b) 34
c) 36
d) 38

b is the correct option

Ques 5

A man has 60 pens. He sells some of these at a profit of 12% and the rest at 8% loss. On the whole, he gets a profit of 11%. How many pens were sold at 12% profit?

a) 47
b) 52
c) 55
d) 57

d is the correct option

Ques 6

A sum of Rs. 6.40 is made up of 80 coins which are either 10-paise or 5-paise coins. How many are coins of 5-paise?

a) 24
b) 28
c) 32
d) 36

c is the correct option

Ques 7

How much tea at Rs. 4 a kg should be added to 15 kg of tea at Rs. 10 a kg so that the mixture be worth Rs. 6.50 a kg ?

a) 15 kg
b) 35 kg
c) 25 kg
d) 21 kg

d is the correct option