Example 3:
Find the S.I. on * 900 lent on August 10 and received back on October 22 of the
3
same year, the rate being 8-% p.a. (per annum).
4
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Answered by
5
Answer:
Let the sum lent at 10% p.a. be Rs. x.
Then, the sum lent at 7% p.a. is Rs. (1500−x).
Then according to the question, we have
⇒
100
x×10×3
+
100
(1500−x)×7×3
=396
⇒
100
30x
+315−
100
21x
=396
⇒
100
9x
=81
⇒x=
9
81×100
= Rs. 900
Hence sum lent at 10% p.a is Rs. 900
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