1.

If Rs 600 becomes Rs 3600 in 20 years on a simple interest rate 'R*, then what is the rate of interest (value of R) ?

Answer»

25 %



Here SUM is 600. After 20 yrs it is 3600.
∴ Interest = 3600 - 600 = 3000.
∴ Rate of interest = 100 X 3000/600 x 20 = 25%



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