Step-by-step explanation:
Since, A car travels = 70 metres per hour
A/Q,
70/2
= 35
Hence, This car travelled 35 metre per half and hour.
( For explanation, 2 was divided by the car's speed. Since, 1 hr = 60mins
Half an Hour = 30 mins ( 30×2)
So, 2 was divided by the speed