Question

7. A train travelling of 20 metre per second leaves at chennai at 7.30 a.m.
When will it reach Ambur a distance of 260 km ?
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Answer 1

Answer:13000 seconds

Step-by-step explanation:

260000/20

=13000 s

Answer 2

1 km =1000 m

260km= 260000m

time=distance/speed

=26000/20

=13000 Seconds

now converting it into hours

13000/3600 (1 hour=3600 seconds)

3 hours &remainder=2200 (in seconds)

now converting 2200 into minutes

2200/60 (1 minute=60 seconds)

=36 minutes &remainder

time taken= 3 hours 36 minutes&40 seconds

7:00

+3:36

=10:36 am