A certain sum of money amounts to Rs. 600 in 2 year and Rs. 700 in 4 years at a
certain rate of simple interst. Find the rate

1 thought on “A certain sum of money amounts to Rs. 600 in 2 year and Rs. 700 in 4 years at a<br />certain rate of simple interst. Find the rate”

1. Answer:

   the increase in amount from year 2 to year 4 is 100

   So the simple interest must have been 100,

   using the formula, R = SI x 100/ P x T

   here time is 4 – 2 = 2 years and principal is 600

   So, R = 100 x 100/ 600 x 2 = 50/6 % or 25/3 %

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