type 8 alligation & mixtures based ratio & proportion problems Practice Questions Answers Test with Solutions & More Shortcuts

Question : 6 [SSC CGL Prelim 2004]

A barrel contains a mixture of wine and water in the ratio 3 : 1. How much fraction of the mixture must be drawn off and substituted by water so that the ratio of wine and water in the resultant mixture in the barrel becomes 1 : 1 ?

a) $3/4$

b) $2/3$

c) $1/3$

d) $1/4$

Question : 7 [SSC CGL Prelim 2003]

In an alloy, the ratio of copper and zinc is 5 : 2. If 1.250 kg of zinc is mixed in 17 kg 500 g of alloy, then the ratio of copper and zinc will be

a) 3 : 2

b) 1 : 2

c) 2 : 3

d) 2 : 1

Question : 8 [SSC CAPFs SI 2013]

The proportion of acid and water in three samples is 2 : 1, 3 : 2 and 5 : 3. A mixture containing equal quantities of all three samples is made. The ratio of water and acid in the mixture is :

a) 227 : 120

b) 133 : 227

c) 227 : 133

d) 120 : 133

Question : 9 [SSC CHSL 2013]

Zinc and copper are in the ratio 5 : 3 in 400 gm of an alloy. How much of copper (in grams) should be added to make the ratio 5 : 4?

a) 72

b) 200

c) 66

d) 50

Question : 10 [SSC CGL Prelim 2002]

The ratio of copper and zinc in brass is 13 : 7. How much zinc will be there in 100 kg of brass ?

a) 35 kg.

b) 40 kg.

c) 55 kg.

d) 20 kg.