Question

Nandini’s house is $\frac{9}{10}km$ from her school. She walked some distance and then took a bus for $\frac{1}{2}km$ to reach the school. How far did she walk?

Answer 1

Given

Distance of the school from Nandini’s house $=$ $\frac{9}{10}km$

Distance Nandini travelled by bus $=$ $\frac{1}{2}km$

To calculate: Distance Nandini covered by walking

Distance walked by Nandini $=$ Total distance of the school $-$ Distance she travelled by bus

$=$ $\left(\frac{9}{10}-\frac{1}{2}\right)km$

$=$ $\frac{9-5}{10}km$

$=$$\frac{4}{10}km=\frac{2}{5}km$ ( Divide both numerator and denominator by their HCF $2$)

Hence, Distance Nandini covered by walking is $\frac{2}{5}km$