Question
L and M are two rectangular containers. The base area of L is 81 cm2 while that of M is 38 cm2 . At first, L contained water to a height of 40 cm and M was empty, as shown.
  1. What was the volume of the water in L at first? 
  2. Sam then poured some water from L to M. After that, the height of the water level in L was twice that in M.  What was the new height of the water level in L? 
3 m
(a)

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(b)

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L and M are two rectangular containers. The base area of L is 81 cm2 while that of M is 38 cm2 . At first, L contained water to a height of 40 cm and M was empty, as shown.
  1. What was the volume of the water in L at first? 
  2. Sam then poured some water from L to M. After that, the height of the water level in L was twice that in M.  What was the new height of the water level in L?