Question

the simple interest on a certain sum of money for 3 years at 20% per annum is ₹150 more to the simple interest on the same sum for 4 years at 10% per annum.the sum is


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Answer 1

1) The simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs.4000 for 2 years at 10% per annum. The sum placed on simple interest is .............. .

ANSWER

Principle= Rs 4000

time=2 year

Rate=10%

Compound interest=P×(1+r)

n

−P

I=P{(1+r)

n

−1}

I=4000(1+.10)

2

−1

I=4000(1.21−1)

I=840

AS per question,

Simple interest=840/2=420=PRT/100

S0, I=420=P×0.08×3

I=1750Rs

Answer (C) 1750 Rs