Question

A contractor undertook a contract to complete the part of stadium in 9 months so he employed 560 mens to work. Later he needed to finish it in 7 months. So how many workera are needed. According to inverse proportion pls solve it

Answer 1

Step-by-step explanation:

let the number of workers=X

let " " " " " of months=y

now we can see that one quantity increase and second decreases so

=x1×y1=x2×y2

=560×9=5×y2

= 4940=5×y2

=4940/5=y2

=988=y2

now more workers needed =428