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8. On a certain sum, the compound interest in2 years amounts to 4,240. If the rates ofinterest for successive years are 10% and 15%respectively, find the sum. in the book the answer is 16000 |
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Answer» Answer: 16000 Step-by-step explanation: Given, C.I. =4240, n=2 years, r 1
=10% and r 2
=15%. ∴A=P(1+ 100 r 1
)(1+ 100 r 2
) ⇒A=P(1+ 100 10
)(1+ 100 15
) ⇒A=P( 10 11
)( 20 23
) ⇒A=P( 200 253
).......(1) Also, C.I.=A−P ⇒4240=P( 200 253
)−P ⇒4240=P( 200 53
) ⇒P=16,000 Hope this will HELP you If it really helps you please mark it as BRAINLIEST ANSWER Also please follow me |
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