Question

if 3 men or 4 women earn 480 in a day how much will 7 men and 11 women earn in a day​

Answer 1

HEY MATE ....

YOUR ANSWER IS......

3x+4y=180 ......(1)

7x+11y=???

solve by graphical method

Answer 2

they vary directly

earing of 3 men for one day=rs480

1 man =480/3

7 men =480/3 multiplied by 7

=1120rs

one day earning of 4 women=480

1 women=480/4

11women=480/4 multiplied by 11

=1320

7 men+11 women's earnings=1120+1320=2440