Question

1 man, 3 women and 4 boys can do a piece of work in 96 hrs, 2 men and 8 boys can do it in 80 hrs, 2 men and 3 women can do it in 120 hrs. 5 men and 12 boys can do it in how many hrs

Answer 1

tricky question plz give answer to me fast

Answer 2

Answer:

Step-by-step explanation:

m+3w+4b=1/96...1

2m+8b=1/80...2

2m+3w=1/120....3

2*eq(2)

4m+16b=1/40...4

eq(3)+eq(4)

5m+12b+(m+3w+4b)=1/40+1/120

5m+12b=11/480

so ans 43 7/11