Michael finished colouring a picture in

A,backslash B,backslash C and D completed colouring a picture in (3)/(4) hour,(7)/(12) hour,(5)/(8) hour and (6)/(7) hour respectively.Which of the following took the least time in colouring the picture? A (b) B( c) C( d ) D

Michael Addition Reaction

David and Michael together can finish a job in 4 days 19 hrs 12 min.If David works at two- thirds Michael's speed,how long does it take Michael alone to finish the same job? a. 8) days b.15backslash days c.12days d.none of these

Girish can paint a picture in 4 days when he works for 8 hours per day. Due to illness, he could work for only 6 hours per day and was required to finish painting 7 such pictures. How many days would Ginish take to finish the work?

Girish can paint a picture in 4 days when he works for 8 hours per day. Due to illness, he could work for only 6 hours per day and was required to finish painting 7 such pictures. How many days would Ginish take to finish the work?

10 men can finish the construction of a wall in 8 days.How many men are added to finish the work in half a day ?