Question

16 workers working 6 hours a day can build a wall of length 150 m, breadth 20 m and height 12 m in 25 days. In how many days can 12 workers working 8 hours a day build a wall of length 800 m, breadth 15 m and height 6 m?

Answer 1

Answer:

50 days

Step-by-step explanation:

to built a wall 150*20*12=3600

hours required=16*6*25=2400

to built a wall 800*15*6=72000

which is exactly twice as bid as the first one

you need 2400*2 hours =4800

that is 12*8 days=4800

days=4800/96=50