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Numerical Ability
Time and Work
.Y can do a work in 2/3 the time it takes X.Z can do the same work in ¾ the time it takes Y.When all three are typing at the same time what fraction of their total work does Y do
a)1/3 b)4/13 c)9/23 d)8/29
Read Solution (Total 3)
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- y=2x/3,z=3y/4
x+y+z=1
3y/2+y+3y/4=1
y=4/13 - 9 years agoHelpfull: Yes(3) No(3)
- Time ratio = 6:4:3
Work ratio = 2:3:4
Y -----3/9= 1/3 - 8 years agoHelpfull: Yes(1) No(0)
- y=2x/3,z=3y/4
x+y+z=1
3y/2+y+3y/4=1
y=4/13 - 9 years agoHelpfull: Yes(0) No(1)
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