Question

Ravi can swim 100 m in 2 minutes. Find his speed in km/hr

Answer 1

Ram swims 100m in 2 mins
So he swims 50 m in 1 min.
Speed=50m/min

Multiplying numerator and denominator by 60
( 60 × 50m)/(1min × 60)
3000m / 60 min
3km/hr is Ram's speed.

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Answer 2

Heya mate,Here is ur answer

1 m = 1/1000 km

100 m =100/1000 km

100m = 1/10 km

1 min =1/60 hr

2 min =2/60 hr

2 min =1/30 hr

so, the question becomes Ravi t
can swim 1/10 km in 1/30 hr. Find his speed.

Speed = distance/time

$= \frac{ \frac{1}{10} }{ \frac{1}{30} }$


$= \frac{30}{10}$


$= 3 \: km \: per \: hr$


So, speed of Ravi = 3 km/hr.

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