Question

A car goes from A to B in 3 hours. If its average speed had been 9 km/h an hour slower, it would have taken4 hours. Find the distance of B from A.

Answer 1

Answer:

36 km

Step-by-step explanation:

A car goes A to B in 3 hours at speed of 9km per hour

then,3×9km/h

=27km in faster speed

similarly4×9km

=36 in slower speed

Answer 2

Answer: Distance between A and B is 108 km.

Step-by-step explanation:

Since we have given that

Time taken to reach B from A = 3 hours

Let the speed be x.

If the speed slower down by 9 km/ hr

Speed becomes x-9

Time will be 4 hours

According to the question,

3x = 4(x-9)

3x = 4x-36

x = 36 km/hr

So, distance would be

3×36 = 108 km.

Hence distance between A and B is 108 km.