IBM
Company
Numerical Ability
Time and Work
10 men and 15 women together can complete a work in 6 days. It takes 100 days for one man alone to complete the same work. How many days will be required for one woman alone to complete the same work?
A. 90 B. 145
C. 150 D. 225
Read Solution (Total 7)
-
- 1 man,s 1 day work =1/100
let 1 woman's 1 day work = 1/x
so
(1/10)+(15/x)=(1/6)
x=225
- 12 years agoHelpfull: Yes(21) No(2)
- 1man 1 day= 1/100
(10man+15woman) 1day = 1/6
10/100+15woman1day = 1/6
15 woman 1day = 1/6 - 1/10
1 woman 1 day = 1/15 (1/6 - 1/10) = 1/225 = 225ans. - 12 years agoHelpfull: Yes(12) No(1)
- 10x+15y=1/6 ............(1) (x=men,y=women)
x=1/100
//put x value in equation (1)
15y=1/6-1/10
y=225 - 8 years agoHelpfull: Yes(6) No(0)
- one man's one day work= 1/100
10 mens +15 women = 1/6
15 women 1 day work = 1/6 - 10/100 ( total man/ man day work)
1 woman 1 day work = 1/15*15 = 1/225
so for onw woman it takes 225 days to complete a work - 7 years agoHelpfull: Yes(1) No(0)
- 1men takes 100 days
10men takes 10days
then
1/10+15/x=1/6
x=225 - 8 years agoHelpfull: Yes(0) No(0)
- 10M+5W =1/6 (per day work)
1M work = 1/100
1w work =10/100+5w=1/6
1w work =225 - 6 years agoHelpfull: Yes(0) No(0)
- 10m+15w = 6 days
1 man = 100 days
10 men in 10 days
15 women = 10*6/4=15 days
One women = 15*15 =225 days - 5 years agoHelpfull: Yes(0) No(0)
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