1.

A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup.How much of the mixture must be drawn off and replaced with watr so that the mixtre may be half water and half syrup?

A) $\frac{1}{3}$

B) $\frac{1}{4}$

C) $\frac{1}{5}$

D) $\frac{1}{7}$

2.

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

A) 3 : 2

B) 3 : 4

C) 3 : 5

D) 4 : 5

3.

A person has 1000 kg of sugar, part of which he sells at 8%profit and rest at 18% profit.He gains 14% on the whole .The quantity sold at 18% profit is

A) 400 kg

B) 560 kg

C) 600 kg

D) 640 kg

4.

The cost of type 1 rice is Rs.15 per kg and type 2 rice is Rs.20 per kg.If both type1 and 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is

A) Rs.18

B) Rs.18.50

C) Rs.19

D) Rs.19.50

5.

In what ratio must rice at Rs.9.30 per kg be mixed with rice at Rs.10.80 per kg.So that the mixture worth Rs.10per kg?

A) 7 : 8

B) 8 : 7

C) 6 : 5

D) 5 : 6

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