Question

A bus moves with 36km/h for2 hour and 54km/h for1hour what is its average speed

Answer 1

for 2 hrs = 36 km/hr

for 1 hr = 54km/h

Average speed = 54 + 36

_______

2+1

=30 km/hr

Answer 2

$<b><i>Solutions :-$
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Q: A bus moves with 36km/h for 2 hour and 54km/h for 1hour what is its average speed ?

➠
Find the distance covers in 2 hrs =>

A bus moves with 36 km/hr for 2 hrs.

Distance covers in 2 hours = 36 × 2 = 72 km

Find the distance covers in 1 hr =>

It moves with 54 km/hr for 1 hr.

Distance covers in 1 hour = 54 × 1 = 54 km

So,
Total distance covered
= (72 + 54)km = 126 km

Total Time taken
= (2 + 1)hours = 3 hours

Now,


$average \: speed \: = \frac{total \: distance \: covered}{total \: time \: taken}$

$= \frac{126}{3} = 42\: km/hr$



Hence,

Average speed of bus is 42 km/hr