PSLE Math 2023 Paper 2 Question 7
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(Rate of Flow of Water Line Graph Question)
PSLE Math 2023 Paper 2 Question 7
a) 1000 –(5 min)-> 1005
Amount of water flowed out = 92L - 76L
= 16L
5 min → 16L
1 min → 16L ÷ 5 = 3.2L
b) At 1005, Tap B was turned on.
c) 1005 –(10 min)-> 1015
Rate of Tap A & Tap B → 60L ÷ 10 min
= 6L/min
Rate of Tap B → 6L/min - 3.2L/min
= 2.8L/min