Question

Question 6

Sunita travelled 15 km 268 m by bus, 7 km 7 m by car and 500 m by foot in order to reach her school. How far is her school from her residence?

Answer 1

We know that 1000 m = 1 km

$\therefore 1m=\frac{1}{1000}km$

$15km268m=15km+268m=15km+1m\times 268=15km+\frac{1}{1000}km\times 268=15.268km$

$7km7m=7km+7m=7km+1m\times 7=7km+\frac{1}{1000}km\times 7=7.007km$

$500m=1m\times 500=\frac{1}{1000}km\times 500=0.5km$

Distance travelled by bus = 15 km 268 m = 15.268 km
Distance travelled by car = 7 km 7 m = 7.007 km
Distance travelled on foot = 500 m = 0.500 km

$\begin{array}{cccccccc}\text{Hundreds}& \text{Tens}& \text{Ones}& .& \text{Tenths}& \text{Hundredths}& \text{Thousandths}& \\ 0& 1& 5& .& 2& 6& 8& \\ 0& 0& 7& .& 0& 0& 7& \\ 0& 0& 0& .& 5& 0& 0& \\ +& & & & & & & \\ 0& 2& 2& .& 7& 7& 5& =22.775\end{array}$

Therefore, total distance travelled by sunitha = 15.268 + 7.007 + 0.500 = 22.775 km