O-level Mathematics june 09 paper 1 questn 11

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11 A rectangular box has dimensions 30 cm by 10 cm by 5 cm.
A container holds exactly 100 of these boxes.
(a) Calculate the total volume, in cubic metres, of the 100 boxes.
(b) Each box has a mass of 1.5 kg to the nearest 0.1 kg.
The empty container has a mass of 6 kg to the nearest 0.5 kg.
Calculate the greatest possible total mass of the container and 100 boxes.


please solve this for me.
 
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