Question 56
Anita invested a certain sum for 4 years at the rate of $$5\%$$ p.a. and received Rs. 850 as simple interest. Sunita also invested certain sum for 6 years at the rate of $$4\%$$ p.a. and received Rs. 840 as simple interest. The difference of the sums they invested is
Solution
Anita's sum is $$\frac{850 \times 100}{5 \times 4} = 4250$$ rupees. Sunita's sum is $$\frac{840 \times 100}{4 \times 6} = 3500$$ rupees. The difference is $$4250 - 3500 = 750$$ rupees.
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