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

28.56

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20

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25

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24

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Solution

The correct option is B $20$
Actual height $= 5$ feet $5$ inches $= 5 \times 12$ inches $+ 5$ inches $= 65$ inches
Height given by mistake $= \frac{125}{100} \times 65$ inches $= 81.25$ inches
$∴$ Required percentage error $= \frac{(81.25 - 65)}{81.25} \times 100 %$
$= (\frac{16.25}{81.25} \times 100) %$
$= 20 %$

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

The correct option is B 20Actual height =5 feet 5 inches =5×12 inches +5 inches =65 inchesHeight given by mistake =125100×65 inches =81.25 inches∴ Required percentage error =(81.25−65)81.25×100%=(16.2581.25×100)%=20%

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