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MEDIUM
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Mathematics
A rectangular field 30 m long and 20 m broad. How much deep it should be dug so that from the earth taken out, a platform can be formed which is 8 m long, 5.5 m broad and 1.5 m high where as the earth taken out is increase by 10/5?
A
12 cm
Option A
10 cm
Correct answer
C
18 cm
Option C
D
24 cm
Option D
Correct answer: B
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