Question

If on a certain sum at 10% for 3 years and 5 years , difference in S.I. is 180 rupees. then find the sum.​

Answer 1

ANSWER:

Difference of Year =  2

Rate of Interest = 10%    => RATE & TIME % = 20

VALUE OF 20 IS = 180

THEN VALUE OF 100 IS = 180*100/20 = 900 answer.

FORMULA: Principal = interest*100/rate & time