Question
PSLE
A tank was filled with 57 litre of water at 11 00. Water flowed out of the tank from 11 00 to 15 00. The line graph shows the amount of water in the tank from 11 00 to 15 00. During which one-hour period was the decrease in the volume of water the greatest? Give your answer in number. (Eg 1)

(1) 11 00 to 12 00
(2) 12 00 to 13 00
(3) 13 00 to 14 00
(4) 14 00 to 15 00 


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PSLE
A tank was filled with 57 litre of water at 11 00. Water flowed out of the tank from 11 00 to 15 00. The line graph shows the amount of water in the tank from 11 00 to 15 00. During which one-hour period was the decrease in the volume of water the greatest? Give your answer in number. (Eg 1)

(1) 11 00 to 12 00
(2) 12 00 to 13 00
(3) 13 00 to 14 00
(4) 14 00 to 15 00