Question
What will be the ratio of simple interest earned on
certain amount at the same rate of interest for 5 years and that for 10 years?Solution
Let the principal be P and rate of interest be R%. Required ratio = [(P×R×5)/100)]/[(P×R×10)/100)] = 5PR/10PR = 1:2
The downstream speed of a boat is 8 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
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