1.

What is the interest rate per annum, if a sum of money invested at compound interest amount to Rs. 2400 in 3 years and in 4 years to Rs. 2,520?

Answer»

A. 6.5%
B. 5%
187
D. 9%

Solution :NUMBER of boys =910 and
Number of GIRLS =650

Note Number in bold represents Boys
Required number =(70+65)135`


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