Others Maths Puzzle Numerical Ability Ratio and Proportion

A 100 liters spirit water solution contains 75% spirit. Find the amount of water to be added to convert it into 60% spirit solution.

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Others Other Question

Srinivasan invests two equal amounts in two banks giving 8% and 12% rate of interest respectively. At the end of year the interest earned is Rs 1500. Find the sum invested in each. In what ratio should tea worth Rs 10 per kg be mixed with tea worth? 14 per kg so that the average price of the mixture may be t 11 per kg.?