Question

In what time will * 5600 amount to 6720 ht 8% per annum?

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Answer 1

Answer:-

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Given:

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▪︎$\bf{ Principal = Rs.5600}$

▪︎$\bf{Amount = Rs.6720}$

▪︎$\bf{Rate\ of\ Interest = 8\%}$

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To find:

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▪︎$\bf{ Time}$

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Solution:

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$\sf{Simple\ Interest}$

$\sf{= Amount - Principal}$

$\sf{= 6720 - 5600}$

$\sf{= Rs.1120}$

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$\sf{Time=(S.I. × 100) ÷ (Principal × Rate)}$

$\sf{=(1120× 100) ÷ (5600 × 8)}$

$\sf{= 112000 ÷ 44800}$

$\sf{= 1120 ÷ 448}$

$\sf{= 2.5}$

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$\boxed{\purple{\bf{\therefore Time = 2.5 yrs.}}}$

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Formula to be remembered:-

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▪︎S.I. = (Principal × Rate% × Height) ÷ 100

▪︎Amount = Principal + S.I.

▪︎Rate = (S.I. × 100) ÷ (Principal × Time)

▪︎Principal = (S.I. × 100) ÷ (Rate × Time)

▪︎ Time = (S.I. × 100) ÷ (Principal × Rate)