CAT Exam

In a rectangular plot 160 m*120 m, a square tank of side 40 m is dug out a depth of 8 m. The earth so dug out is evenly spread to cover the remaining area, by how much has the level of plot has been raised?

Read Solution (Total 1)

73 cms approx

vol of earth got from tank = 40*40*8 = 12800 cubic mtr

Balance area of plot = 160*120 - 40*40 = 19200 -1600 = 17600 sq mtr
level raised = 12800/17600 = 128/176 mtr = 0.727 mtr = 73 cms approx
12 years agoHelpfull: Yes(1) No(2)

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