MEDIUM
IBPS RRB Office Assistant Prelims
IMPORTANT
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In the litres of mixture of milk and water, the ratio of milk and water is . The quantity of water required to make the ratio of milk and water is -
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Important Questions on Quantitative Aptitude Practice Book
MEDIUM
IBPS RRB Office Assistant Prelims
IMPORTANT
450 litres of a mixture of milk and water contain the milk and water in the ratio 9 : 1. How much water should be added to get a new mixture containing milk and water in the ratio 3 : 1 ?
MEDIUM
IBPS RRB Office Assistant Prelims
IMPORTANT
By mixing two qualities of pulses in the ratio 2: 3 and selling the mixture at the rate of Rs 22 per kilogram, a shopkeeper makes a profit of 10 %. If the cost of the smaller quantity be Rs 14 per kg, the cost per kg of the larger quantity is: .
MEDIUM
IBPS RRB Office Assistant Prelims
IMPORTANT
A milkman purchases the milk at Rs. x per litre and sells it at Rs. 2x per litre. also he mixes 2 litre water with every 6 litres of pure milk. What is the profit percentage?
MEDIUM
IBPS RRB Office Assistant Prelims
IMPORTANT
How much water must be added to 100 cc of 80% solution of boric acid to reduce it to a 50% solution ?
MEDIUM
IBPS RRB Office Assistant Prelims
IMPORTANT
The milk and water in two vessels A and B are in the ratio 4 : 3 and 2 : 3 respectively. In what ratio the liquids in both the vessels be mixed to obtain a new mixture in vessel c consisting half milk and half water?
MEDIUM
IBPS RRB Office Assistant Prelims
IMPORTANT
A grocer purchased 80 kg. of sugar at Rs 13.50 per kg. and mixed it with 120 kg. sugar at Rs 16 per kg. At what rate should he sell the mixture to gain 16%?
MEDIUM
IBPS RRB Office Assistant Prelims
IMPORTANT
In a 25 litre mixture of milk and water, the water is only 20%. How many litres of water is required to increase the percentage of water to 90%?
HARD
IBPS RRB Office Assistant Prelims
IMPORTANT
A and B are two alloys of gold and copper prepared by mixing metals in the ratio 7 : 2 and 7 : 11 respectively. If equal quantities of the alloys are melted to form a third alloy C, the ratio of gold and copper in C will be :
