Mathematics
Medium
Question
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 cm
✓ Official correct answer
C
18 cm
D
24 cm
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A
12 cm
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B
10 cm
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C
18 cm
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D
24 cm
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