A certain sum of money amounts to 19680 in 7 years at 15% per annum simple interest find the sum.
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Answer:
Explanation:
Amount=19680rs
time=7years
rate=15%
principle=p
si=prt/100
=p×15×7/100
=21p/20
amount=p+si
19680=p+21p
19680=22p
p=19680/22
p=895rs
si=19680-895
=18785rs
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