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Maths Mcqs

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
B. 10 cmCorrect Answer
C. 18 cm
D. 24 cm
Correct Option: B. 10 cm

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