a boy Run 1 km in 12 minutes how long it take to run 400m
Answers
Answered by
11
400m=2/5kms
so
1km=12min
2/5kms=24/5
24/5mins
so
1km=12min
2/5kms=24/5
24/5mins
tejas100:
4 min 48 second
Answered by
14
1 km = 1000m
∴ 1000m = 12
400 m = x
by cross multiplying
1000x = 12 * 400
x = 12 * 400 / 1000
x = 12 * 4 / 10
x = 48 / 10
x = 4.8 mins
∴ 1000m = 12
400 m = x
by cross multiplying
1000x = 12 * 400
x = 12 * 400 / 1000
x = 12 * 4 / 10
x = 48 / 10
x = 4.8 mins
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