Question

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. 

(a) 28.56 

(b) 20 

(c) 25 

(d) 24

Answer 1

(b) 20

Actual height = 5 feet 5 inches

= 5 × 12 inches + 5 inches

= 65 inches

Height given by mistake =\(\frac{125}{100}\) x 65 inches

= 81.25 inches

\(\therefore\) Required percentage error

= \(\frac{(81.25-65)}{81.25}\) x 100%

= \(\Big(\frac{16.25}{81.25}\times100\Big)\)% = 20%