Question

Question 6

Namita travels 20 km 50 m every day. Out of this she travels 10 km 200 m by bus and the rest by auto. How much distance does she travel by auto?

Answer 1

We know that 1000 m = 1 km

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

$20km50m=20km+50m=20km+1m\times 50=20km+\frac{1}{1000}km\times 50=20.050km$

$10km200m=10km+200m=10km+1m\times 200=10km+\frac{1}{1000}km\times 200=10.200km$

Total distance travel = 20 km 50 m = 20.050 km

Distance travelled by bus = 10 km 200 m = 10.200 km

Distance travelled by auto = 20.050 –10.200

$\begin{array}{cccccccc}\text{Hundreds}& \text{Tens}& \text{Ones}& .& \text{Tenths}& \text{Hundredths}& \text{Thousandths}& \\ 0& 2& 0& .& 0& 5& 0& \\ 0& 1& 0& .& 2& 0& 0& \\ -& & & & & & & \\ 0& 0& 9& .& 8& 5& 0& =9.850\end{array}$

Therefore, distance travelled by auto = 9.850 km