"X can do `1/4` of a work in 10 days, Y can do `40%` of the work in 40 days and Z can do `
Channel: Doubtnut
Date: 2020-04-05

"X can do `1/4` of a work in 10 days, Y can do `40%` of the work in 40 days and Z can do `1/3`
of the work in 13 days. Who will complete the work first?
a. `X`
b. `Y`
c. `Z`
d. `X and Z ` both"