From a cubic tank filled with water,225 buckets of capacity 15 litres could be filled.find the length of the edge of the tank.

Dear student
Volume of water  in tank=Number of buckets×capacity of bucket=225×15=3375 litres=33751000 m3  as 1 l=11000 m3=3.375 m3Also volume of tank=a3   , where a is the edge of tank3.375=a3a=3.3753a=337510003a=15×15×1510×10×103a=1510a=1.5 m
Regards

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