Question

A man walk for 2hr at 6km/h.he then cycled for a certain time at 16km/h.if he traveled 36km all together for how many hours did he cycle

Answer 1

1½ or 1.5

Explanation:

D = speed × time

D = 6 × 2

D = 12km ( answer to the first sentence )

2nd sentence

Speed = 16 km/h

Distance travelled all together = 36 km

Distance = x

x + 12 = 36

x = 36 - 12

x = 24km

Distance = 24km

Time = ?

T = Distance ÷ Speed

T = 24/16

T = 3/2

T = 1½ or 1.5

Answer 2

t = 1.5 hours

Explanation:

Given that,

A man walk for 2hr at 6 km/h.

He then cycled for a certain time at 16 km/h.

He travelled 36 km all together.

We need to find for how many hours did he cycle.

Distance walked in 2 hours = 2×6 = 12 km

Distance he cycled = 36-12 = 24 km

Let he cycled for t hours. So,

`t=(24)/(16)\\\\t=1.5\ h`

So, he cycles for 1.5 hours.