Question

plz..answer. ..this question

Answer 1

Distance = 3 km
Time = 5 min
he covers distance in 5min = 3km
so, in 1 min ,distance = 3/5 km
Now,
(a).3/5 km/min= 3×1000× 100/5×60 cm/sec.
= 1000 cm/sec.
(b). 3/5 km/min= 3×1000/5× 60 m/sec.
= 10 m/sec.
(c).3/5 km/min = 3×60/5 km/hr
= 36 km/hr.

Answer 2

Hey Vanshi

Distance =3km = 3000m = 3× 10^5cm
Time = 5min = 300 sec =1/12 hrs

Speed = Distance/time

1) Speed= 3×10^5 cm/300sec
= 1000 cm/sec

2) Speed= 3000m/ 300sec
= 10m/sec

3) Speed = 3km/(1/12hrs) = 36km/hrs