Question

a reptile slides 150 m in 3 minutes . Calculate : 1) its speed in km/h . 2) the distance covered in 1 hour and 30 minutes​

Answer 1

Answer:3kmph and 4500m

Step-by-step explanation:

Given that,

The reptile slides 150m in 3 min.

1000m=1 Km

1m=(1/1000)km

150m=(1/1000)×150km=0.15km

Now, 60 min =1 hour

1 min=(1/60) hour

3 min=(1/60)×3=1/20 hour

Now, 150 m /3 min=0.15/(1/20)=0.15×20=3 kmph

Now,

Distance covered in 1 hr 30 min=?

1hr30 min=90 min

In 3 min it covers 150 m

In 1min it covers (150/3)m=50 m

Therefore in 90 min it covers 90×50m=4500m=4.5 km