1) A bottle containing 30 litres of milk, 6 litres are drawn out and same amount is filled with water. The same process is repeated twice more, how much milk is left in the bottle ?
A. 15.36 litres
B. 14.27 litres
C. 15 litres
D. 14 litres
2) How many litres of the 10 litres (milk + water) in the ratio 2:5 be replaced with pure milk so resultant mixture contains (milk + water) in the ratio 3:4 ?
A. 2 litres
B. 2.5 litres
C. 3 litres
D.3.5 litres
3) A milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is :
A. 25%
B. 20%
C. 30%
D.35%
4) A shopkeeper has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is :
A. 500 kg
B. 400 kg
C. 600 kg
D. 700 kg
5) 300 gm of sugar solution has 40% sugar in it. How much sugar added to make it 50% in the solution ?
A. 60 gm
B. 50 gm
C. 45 gm
D. 55 gm
6) A person has a chemical of Rs 25/ltr. In what ratio the chemical be mixed with water so that after selling the mixture at Rs 20/ltr he may get a profit of 25% ?
A. 9:16
B. 9:7
C. 16:9
D. 7:9
7) A trader has 50 kg of rice, a part of which he sells at 14% profit and the rest at 6% loss. On the whole his loss is 4%. What is the quantity sold at 6% loss ?
A. 40 kg
B. 45 kg
C. 50 kg
D. 60 kg
8) In what ratio three kinds of rice costing Rs 1.2, Rs 1.44 and Rs 1.74 per kg should be mixed so the mixture is worth Rs 1.41 per kg ?
A. 25:45:8
B. 27:23:6
C. 11:77:7
D. 11:45:7
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