Question

find volume of a tank which is 30 m long and 20 broad and 12 metre deep​

Answer 1

Step-by-step explanation:

volume of tank = l×b×h

= 30×20×60

= 7200 cm^3

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Answer 2

Answer:

Volume of earth taken out = volume of the tank

=30×20×12m

3

Area of the tank =l×b

=(30×20)m

2

=600m

2

Area of the field (500×30)m

2

=15000m

2

Area of the reaming field =(15000−600)m

2

=14400m

2

∴ level of the filed raised

=

14400

7200

m=

2

1

m

=50cm