Question

Mr Lee took 7 hours to travel from Town A to Town B while Mr Wong took 8 hours to travel
from Town B to Town A. Both of them did not change their speed throughout the journey.
Both of them started off at the same time and moved towards each other. 3 hours later,
they were 110 km apart. What was the speed Mr Lee was driving?
Mr Lee took 7 hours to travel from Town A to Town B while Mr Wong took 8 hours to travel
from Town B to Town A. Both of them did not change their speed throughout the journey.
Both of them started off at the same time and moved towards each other. 3 hours later,
they were 110 km apart. What was the speed Mr Lee was driving?

Answer 1

Answer:

Mr Lee's speed = x/7

Mr Wong's speed = x/8

3x/7 + 3x/8 + 110 = x

56x - 6160 = 45x

11x = 6160

x = 560

x/7 = 80km/h

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