The time required so that Rs 450 may increase to Rs 576 (the rate of simple interest being 7% per annum) is

2 years

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3 years

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4 years

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6 years

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Solution

The correct option is C 4 years
Simple interest will be(576-450)=Rs126
Let the Time required be t
As per formula,
$S i m p l e I n t e r e s t = \frac{P \times t \times r}{100}$
$126 = \frac{450 \times t \times 7}{100}$
$315 t = 1260$
$t = \frac{1260}{315} = 4$
Time required will be 4 years

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The time required so that Rs 450 may increase to Rs 576 (the rate of simple interest being 7% per annum) is

The correct option is C 4 yearsSimple interest will be(576-450)=Rs126 Let the Time required be tAs per formula,SimpleInterest=P×t×r100126=450×t×7100315t=1260t=1260315=4Time required will be 4 years

The correct option is C 4 years
Simple interest will be(576-450)=Rs126
Let the Time required be t
As per formula,
$S i m p l e I n t e r e s t = \frac{P \times t \times r}{100}$
$126 = \frac{450 \times t \times 7}{100}$
$315 t = 1260$
$t = \frac{1260}{315} = 4$
Time required will be 4 years