Maths

Author Manisha Gupta asked on 2019-07-22 13:26:00

Let total work will be LCM of ( 22,33 =66)

A work =66/22=3

B work =66/33=2

in last 7hours A worked alone, work completed in last 7 hours =7*3=21, Remaining work=66-21=45

45 will complete by A and B  in 45/5= 9hours, Total time =7+9=16