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Q.11-A 60 litres mixture contains milk and water in the ratio of
2:1. How many litres of water should be added so ratio become
1:2 in new mixture?
Q.12- A solution of sugar syrup has 15% sugar. Another solution
has 5% sugar. How many litres of the second solution must be
added to 20 litres of the first solution to make a solution of 10%
sugar?
(a) 10
(b) 5
(c) 15
(d) 20
(e) None of these
Q.13-Two tanks A and B contain mixtures of milk and water in
the ratio 3:2 and 1:1 respectively .The volumes of two tanks are
in the ratio 2:3. If contents of both the tank are mixed, the ratio
of milk and water ?
(a) 15 : 17
(b) 27 : 23
(c) 22 : 27
(d) 19 : 22
(e) None of these
Q.14-A jar contains a mixture of two liquids A and B in the ratio
4 : 1. When 10 litres of the mixture is taken out and 10 litres of
liquid B is poured into the jar, the ratio becomes 2 : 3. How
many litres of liquid A was contained in the jar?
(a) 14 litres
(b) 18 litres
(c) 20 litres
(d) 16 litres
(e) None of these
Q.15- There are 2 bottles containing a mixture of wine, water
and alcohol. The first bottle contains wine, water and alcohol in
the ratio 3 : 5 : 2. The second bottle contains water and wine in
the ratio 5 : 4. 1 litre of the first and 2 litres of the second are
mixed together. What fraction of the mixture is alcohol?
(a) 1/15 litres
(b) 6/13 litres
(c) 2/15 litres
(d) 6/19 litres
(e) None of these
Q.16-Two containers A and B, contains a mixture of water and
acid in the ratio 7 : 2 and 7 : 11 respectively. If equal quantities
of these two containers are pour into a third container C, the
ratio of water and acid in C will be
(a) 5 : 7
(b) 7 : 5
(c) 6 : 5
(e) 8 : 7
(e) None of these
Q.17- A container has 30 litres of water. If 3 litres of water is
replaced by 3 litres of spirit and this operation is repeated
twice, what will be the quantity of water in the new mixture?
(a) 20 litres
(b) 22 litres
(c) 24.3 litres
(d) 26.6 litres
(e) None of these
Q.18-There are two mixtures A and B, both contains milk and
water. In mixture A ratio of milk and water is 5:4 whereas in
mixture B ratio of milk and water is 5:7. What part of mixture B
should be taken out and replaced with mixture A so that in
mixture A so that in mixture B quantity of milk and water
becomes equal ?
Q.19- A bottle is full of Milk. One-third of it is taken out and
then an equal amount of water is poured into the bottle to fill
it. This operation is done four times. Find the final ratio of milk
and water in the bottle.
(a) 13 : 55
(b) 20 : 74
(c) 16 : 65
(d) 10 : 48
(e) None of these
Q.20- A bottle contains three-fourths of milk and the rest water.
How much of the mixture must be taken away and replaced by
an equal quantity of water so that the mixture has half milk and
half water?
(a) 25%
(b) 100/3 %
(c) 45%
(d) 50%
(e) None of these
Q.21-A dishonest milkman has taken out 15 L of milk from a
container and replaced with the same quantity of water. He
again repeated this process 2 times. Thus the ratio of the milk
becomes 343:169. Find the initial amount of milk in the
containers.
Q.22- A tea vendor purchases the tea at some cost and sells it a
profit of 100%. If he mixes 5kg of low quality tea costing only
20% of first type of tea with every 25 kg of first type of tea and
keeps the selling price same as earlier then what is his new
profit percentage?
(a) Rs 25 (b) 26 (c) 24 (d) 30
Q.23- A tank which contains a mixture of syrup and water in
ratio 15:6. 42 litres of mixture is taken out from the tank and 8
litres of pure water and 7 litres of syrup is added to the mixture.
If resultant mixture contains 33.33% water, what was the initial
quantity of mixture in the tank before the replacement in litres
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