Question

4. A boy runs one km. in 12 minutes. How long
will he take to run 400 m ?​

Answer 1

Answer:

1000m in 12 minutes

400m in x minutes

[Unitary method used here]

1000->12

400->x

[cross multiplication]

1000x=400×12

x=4800/1000

x=4.8 minutes

Therefore it will take 4.8 minutes for the boy to run 400 metres.

Please mark as the brainliest answer.

Answer 2

288 seconds is the answer,on converting 288 seconds in minutes it becomes 4.8minutes