It takes 10 days for digging a trench of 100 m long, 50 m broad and 10 m deep. What length of trench,25 m broad and 15 m deep can be dug in 30 days ?
Choose one.
A) 400 m B) 200 m C) 100 m D) 89 m E) 79 m
More days, more length (Direct)   Less breadth, more length (Indirect)   More depth, less length (Indirect   Days 10 : 30;   Breadth 25 : 50; : : 100 : x   Depth 15 : 10;   :. 10 * 25* 15 * x = 30 *50 * 10 *100   x= (30*50*10*100)/10*25*15 = 400   So the required length = 400m   400 mNSWER:400 m
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It takes 10 days for digging a trench of 100 m long, 50 m broad and 10 m deep. What length of trench,25 m broad and 15 m deep can be dug in 30 days ?