If one worker can lay 10 bricks every hour, and one bandit steals 3 bricks every hour, then how long would it take 8 workers and 5 bandits to lay 1400 bricks?

Answer 1

8x10 -5x3 = 1400/h

h= 1400/65 = 280/13= 21 hours 32 minutes 18 seconds

= slightly over 21 1/2 hours

65x21.5= 1397.5