Question

a car travels 90 km in an hour how far will it travel in 21/2 hours

Answer 1

a) In this case, time is unknown and distance is known. Therefore,we proceed as follows :212hours = 52hours = 52× 60 minutes = 150 minutes.90 km is covered in 150 minutesTherefore, 1 km can be covered in 15090minutesTherefore, 30 km can be covered in 15090× 30 minutes i.e. 50 minutesThus, 30 km can be covered in 50 minutes.

Answer 2

correct answer=945 km