Question
PSLE
The figure shows taps A and B and an empty tank. At 8 p.m., tap A was turned on. Water flowed into the tank from tap A at a rate of 4.5 litres per minute. After 6 minutes, tap B was turned on. At 8.15 p.m., the tank was half filled with water.
  1. How many litres of water flowed out of tap B in 1 minute?
  2. At 8.21 p.m., what fraction of the tank was filled with water?
5 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
The figure shows taps A and B and an empty tank. At 8 p.m., tap A was turned on. Water flowed into the tank from tap A at a rate of 4.5 litres per minute. After 6 minutes, tap B was turned on. At 8.15 p.m., the tank was half filled with water.
  1. How many litres of water flowed out of tap B in 1 minute?
  2. At 8.21 p.m., what fraction of the tank was filled with water?