Question

A boy misses his school bus and starts to walk towards his home which is 2and1/2 km away.After walking 2/5 of the total distance, he stops for rest. How much distance remains to be covered?​

Answer 1

Home - 5/2 km away
2/5 distance - 2/5 (5/2) = 1
Then distance left - 5/2 - 1 = 3/2 = 1 and a half km more.

Answer 2

$1\dfrac{1}{2}$ km remained.

Step-by-step explanation:

Given,

Total distance = $2\frac{1}{2}$ km = $\frac{5}{2}$ km,

2/5 of total distance = 2/5 of $\frac{5}{2}$

$=\frac{2}{5}\times \frac{5}{2}$

= 1

∵ He has covered 2/5 part of the total distance,

Thus, the remaining distance = total distance - covered distance

$=\frac{5}{2}-1$

$=\frac{5}{2}-\frac{2}{2}$

$=\frac{5-2}{2}$

$=\frac{3}{2}$

$=1\frac{1}{2}$ km

#Learn more:

Subtracting fractions :

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