Question

the difference between C.I and S.I for 4 years at 20% per annum is Rs 82 find the sum

Answer 1

let sum of money =p
SI=p*r*t/100
I=p*20*4/100
I=80/100
I=4p/5
when compound annually
A=p(1+r/100)4
A=p(1*20/100)4
A=p(5+1/5)4
A=p(6/5)4
=p*6/5*6/5*6/5*6/5
=p*1296/625
CI=A-P
=1296p/625-p
=1296p-625p/625
=671p/625

CI-SI=82
671p/625-4p/5=82
671p-500p/625=82
171p/625=82
171p=625*82
171p= 51250
p=51250/171
p=299.7

Answer 2

Answer:

nabk'g distributional k set hju Rediff class we all do FL CL her

Step-by-step explanation:

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