Question
A mall and a factory are 150 m apart. They are located between Ethan's house and Riordan's house, as shown. The mall is exactly halfway in between the two houses. One day, Ethan and Riordan started cycling from their houses at the same time and they arrived at the factory together. Riordan cycled at 82 m/min while Ethan cycled at a speed 10 m/min faster than Riordan. 
  1. How much further did Ethan cycle than Riordan?
  2. How far is Riordan's house from the factory? Express your answer in m.
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

A mall and a factory are 150 m apart. They are located between Ethan's house and Riordan's house, as shown. The mall is exactly halfway in between the two houses. One day, Ethan and Riordan started cycling from their houses at the same time and they arrived at the factory together. Riordan cycled at 82 m/min while Ethan cycled at a speed 10 m/min faster than Riordan. 
  1. How much further did Ethan cycle than Riordan?
  2. How far is Riordan's house from the factory? Express your answer in m.