the simple interest on a certain sum of 2 years at the rate of 6% per annum is 126 rupees more than the simple interest on the same sum for 1 year at the rate of 8% per annum. find the sum.
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Answered by
1
Answer:
Simple Interest, S.I. = Rs. 1260 =
100
PR×2
=
50
PR
-(i)
Compound Interest, C.I. = Amount(A) - Principle(P)
=P(1+
100
R
)
2
- P = PR(R/10000+1/50)=Rs.1323 -(ii)
Dividing (ii) by (I),
200
R
+1 =
1260
1323
⇒Rate,R=10%p.a.
Now,
100
PRT
=1260
⇒
100
P×10×2
=1260
⇒ Principal or Sum , P = Rs.6,300
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