Question

of the sum. Find the rate per cent and the
16
Simple interest on a certain sum is
25
time if both are numerically equal.
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Answer 1

$SI= \frac{16}{25} P;P=P;R=T$

$I= \frac{PTR}{100}$

$⇒ \frac{16}{25} P= \frac{P×R×R}{ 100 }$

${⇒R}^{2} = \frac{16}{25} ×100=64$

∴ R=8%, T=8years