Question

if the average speed of a car is 45 km/hr how far can it travel in 40 min

Answer 1

Now this sum is really easy if u revised the unit conversions and few tricks associated to convert them

Now avg speed is given as 45 km per hour but u should know the trick when u multiply km per hour hour value with 5 by 18 ull get that value in m/s so lets proceed

45x 5/18=12.5m/sec

1 sec=12.5m

40 minutes=x

Therfore x =12.5 x40 x 60(so as to covert sec in 60 as 40 is in minutes and 12.5 m was for one sec)

Simply we get x=30000 m i.e 30km :D