Question

Find the sum of money that amounts to 're 992 in 4years 10percent at per annum

Answer 1

let the sum be x.
amount = rs 992
time = 4 years
rate = 10 %


S.I = 992 -x

ATP
S.I = prt / 100

992 - x = x × 10 × 4 / 100
100 ( 992 - x ) = 40x
99200 - 100x = 40x
99200 = 40x + 100x
99200 = 140x
99200 / 140 = x
708.57 = x

the sum of money will be rs. 708.57 (approx )