2013 RRB Allahabad

Question 86

A invested Rs 10,000 for 9 months and B invested Rs 18,000 for some times in a business If the profits of A and B are equal then the period of time for which B’s capital was invested is

Solution

A's profit = 10,000 x 9 x r/100

B's profit = 18000 x t x r/100

But the profits are same so, 

10,000 x 9 x r/100  = 18000 x t x r/100

so, t = 5 months.


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