"A and B can finish a work, working on alternate days, in 19 days, when A
Channel: Doubtnut
Date: 2020-04-05

"A and B can finish a work, working on alternate days, in 19 days, when A works on the first However, they can finish the work, working alternate days, in `19 5/6` days, when B works on first day. How many days does A alone take finish the work? 
a. `11 1/2\ d a y s`
b. `15\ d a y s\ `
c. `18\ d a y s`
d. `21\ d a y s`"