The simple interest on a sum of money is 1/4th of the principle and the number of years is equal to rate percent per annum. Find the rate percent.
Answers
Answered by
2
Answer:
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Step-by-step explanation:
Let the principal be Rs. P.
S.L =
100
p×R×T
⇒
4
p
=
100
p×4×R
⇒R=
16
100
=
4
25
% per annum
⇒P=
Rate×Time
SI×100
⇒P=
4
25
×2
(450−p)×100
⇒p=450×8−8P
⇒9P=450×8⇒P=Rs.400
Answered by
9
Step-by-step explanation:
Given:S.I=1/4×P. T=R.
To find: R=?%.
Simple interest=P×T×R/100
=> 1/4×P=P×R×R/100
=> 1×100×P/4×P=R².
=> 25=R².
=> √25=R
=> 5%=R.
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