Question

7. A boy can run 16 km in 2 hours. Find out the speed of boy in km/h and in m/s
​

Answer 1

use the formula Speed=Distance/time

Speed=16/2km/m

Speed=8km/m

I hope you understand

Answer 2

ɢɪᴠᴇɴ :-

• Distance travelled by boy = 16km
• Time taken = 2hours

ᴛᴏ ғɪɴᴅ :-

• Speed of boy in km/h and m/s

Sᴏʟᴜᴛɪᴏɴ :-

• In first condition

As we know that

→ Speed = distance/time

→ speed = 16/2

→ speed = 8km/h

Hence, speed of boy is 8km/h

• In second condition

★ Distance = 16km

→ distance = 16000m

★ Time = 2 hours

→ time = 2 × 60 × 60 = 7200s

→ speed = distance/time

→ speed = 16000/7200

→ speed = 2.2m/s

Hence,

• Speed of boy is 2.2m/s