Math, asked by mahiway3100, 1 year ago

at what rate of interest per annum rs 600 will become 661.5 in 2 years

Answers

Answered by preetamkabade
1
solution
considering it as CI

661.5=600(1+r/100)^2
441/400=(100+r/100)^2
(21/20)^2 = (100+r/100)^2
2100=2000+20r
100 = 20r
r =5 %
if its Si

61.5=600×2× r/100
6150 = 1200× r
r = 5.125%

hope that helps..
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