19 men working 71/2
hours a day can finish a job in 21 days. How many hours a day must
45 men work to complete it in 7 d

Question

19 men working 71/2 hours a day can finish a job in 21 days. How many hours a day must 45 men work to complete it in 7 days?​

Anna · Answer

Answer:   67 is theright answerok done

19 men working 71/2hours a day can finish a job in 21 days. How many hours a day must45 men work to complete it in 7 d