2009 · Q89
A does work in 10 days, B in 12, C in 15. Together in how many days?
general-mental-abilityquantitative-aptitude
- A3
- B4
- C5
- D6
Explanation
1/10+1/12+1/15=1/4; together take 4 days.
A does work in 10 days, B in 12, C in 15. Together in how many days?
Explanation
1/10+1/12+1/15=1/4; together take 4 days.