Question : A cuboidal water tank is 12 m long, 9 m wide and 7.5 m deep. How many litres of water can it hold?
Option 1: 840000
Option 2: 805000
Option 3: 780000
Option 4: 810000
Correct Answer: 810000
Solution : Given: Length = 12 m, Breadth = 9 m, Height = 7.5 m Volume of cube = Length × Breadth × Height ⇒ Volume of cube = 12 × 9 × 7.5 = 810 m 3 The amount of water held by 1 m 3 tank = 1000 litres So, the amount of water held by 810 m 3 tank = 810 × 1000 = 810000 litres Hence, the correct answer is 810000.
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