Math, asked by Anonymous, 1 year ago

a sum of money becomes 7 by 4 of itself in 6 years at a certain rate of interest.find rate of interest

Answers

Answered by alishakhandel0p7s75i
6
Let sum i.e. principal be rs100
A=rs 7/4×100 = 700/4
T=6 yrs
S.I.=A-P = 700/4-100=700-400/4=rs300/4
By formulae,
R=100×S.I./P×T=100×300/100×6×4
=300/6×4=25/2=12.5%p.a
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