Postal
Government Jobs Exams
Numerical Ability
3 men can do a piece of work in 6 days, 5 women can do the same work in 18 days. If 4 men and 10 women work together, then how long will it take to finish the work.
a- 3 days
b- 5 days
c- 2 days
d- 4 days
Read Solution (Total 3)
-
- 3 men's 1 day work = 1/6
1 man's 1 day work = 1/(6*3) = 1/18
5 women's 1 day work = 1/18
1 woman's 1 day work = 1/(18*5) = 1/90
4 men's 1 day work = 4*1/18 = 2/9
10 women's 1 day work = 10*1/90 = 1/9
4 men's + 10 women's 1 day work = 2/9 + 1/9 = 3/9 = 1/3
They ll complete the work in 3 days
Ans : (a) 3 days - 10 years agoHelpfull: Yes(9) No(0)
- 1 MEN 1 DAY WORK=3*6=18
1 WOMEN 1 DAY WORK=5*18=90
(4 MEN AND 10 WOMEN) WORK =(4/18+10/90)=3ANS - 10 years agoHelpfull: Yes(1) No(0)
- ans 3days,1 man 1 day work=1/18,1 women 1 day work=1/90,i,e 4 men work=(1/18*9)=2/9
10 women work=(1/90*10)=1/9
Add both=1/9+2/9=3/9=1/3,so total work days =3 - 10 years agoHelpfull: Yes(0) No(0)
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