A man reduces his travelling time by a fraction of 2/5, as a result the distance covered by the man is increased by 20%, find the percentage increase in the speed of the man ?

A man reduces his travelling time by a fraction of 2/5, as a result the distance covered by the man is increased by 20%, find the percentage increase in the speed of the man ?

A 77%

B 88%

C 100%

D 99%

Solution

Correct Answer: Option C

20 = x- 40 - \(\frac{X\times\;40}{100}\)

= X = 100%