Question

Jhon can do certain job in 8 hours. Willy in 10 hours, and Ruby in 12 hours. How long will it take to do the task if John and Willy work 2 hours and John and Ruby finish the task?

Answer 1

Answer:

4 hours plz follow me and make me

Answer 2

HERE IS YOUR ANSWER MATE......;

$= > </u></em></strong><strong><em><u>4</u></em></strong><strong><em><u> \: hours$

HOPE IT'S HELPFUL.....:-)