Question

1. Calculate the speed of a moving ear which travels 120 km in 2 hours ​

Answer 1

Question :-

Calculate the speed of a moving car which travels 120 km in 2 hours.

Solution :-

We have ,

• distance = 120 km

• time taken = 2 hours

Thus ,

$\begin{aligned} \sf{speed} &= \sf{ \dfrac{ \ distance \ }{time} } \\ \\ &= \frac{ \ 120 \ km \ }{ \ \ \ 2 \ \ hr.} \\ \\ &= \frac{ \cancel{120} \ {}^{60} }{ \cancel{2} \ _{1}} \ km/h \\ \\ &= \quad60 \ \ km/h \end{aligned}$

Hence, the speed of the moving car is 60 km/h .

Answer 2

Answer:

Let the distance be x,

time taken to travel=

x/120,

time taken to return=

x/80,

average speed=Total distance/time taken

=

120

x

+

80

x

2x

=

5x

2x∗240

=96km/hr

Explanation:

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