Question

this question is for genius ​

Answer 1

Answer:

16.8 sec

Step-by-step explanation:

i think this is the answer

Answer 2

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first let's convert into m/hour

1 km = 1000 meter then speed is

15*1000 / hour

=15*1000 / 3600 sec

= 15* 5/18

= 75/18 m/s

dist to cover is 750 m,

we know Dist = speed * time

time = dist / speed

= 750 /75 * 18

= 10*18

= 180 secs or 3 mins