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In Medical certificate, by mistake a candidate gave his height as 25% more than normal. In the interview panel,he  clarified his height was 5 feet 5inches. Find the percentage correction made by the candidate from his stated height to his actual height.

1. 20
2. 28.56
3. 25
4. None of these
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Method 1

$1$ feet = $12$ inches

So $5$ feet $5$ inches = $65$ inches.

So $65$ inches is the actual height of the candidate.

Height which he wrote on certificate = $65$ + ($25\%$ of $65$) = $65+16.25 = 81.25$ inches.

So $Percentage\ correction$

$= \frac{Wrong\ height - Actual\ Height}{Actual\ height} * 100$

$= \frac{81.25 - 65}{65} *100$

$= \frac{16.25}{65} *100$

$= 25\%$

Method 2

the original height was $5$ feet $5$ inches

But he increased his height by $25\%$ and wrote in the certificate.

So what will he do to make it correct ?

Decrease the height by $25\%$ which is written in the certificate.

So option 3. $25$ is correct answer.

by Boss (17.5k points)
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