Question

If 18 workers require 2 weeks to fabricate a machine, then find the number of weeks required to fabricate 3 such machines if 4 workers are reduced?​

Answer 1

let the no. of weeks be x

1st case: workers | time | machine

| | |

18 2weeks 1

2nd case: 18-4 x 3

so obviously 14 worker will take more time

: (14/18) *(3/1) = x/2

7/9*3/1 = x/2

7/3 = x/2

shifting 2 to LHS

7/3*2 = x

14/3 weeks