A can do a work in 12 days and B in 24 days. If they work on it together for 4 days, then what fraction of work is left?

A can do a work in 12 days and B in 24 days. If they work on it together for 4 days, then what fraction of work is left?
1). 1/3
2). 1/2
3). 1/4
4). 1/5

---

Join Telegram Group

Answer This Question
Name:
Email:
Answer :
Sum of (5+5)
Submit:

Other Questions

1. Rahi is 30% less efficient than Tanu. If Tanu does a work in 99 days, in how many days will they together complete a work?

2.  A can do a piece of work in 20 days which B can do in 12 days. B worked at it for 9 days. A can finish the remaining work in:

3. A alone can do a work in 20 days. B is 25% more efficient than A. A and B started working and worked for 4 days. If C alone completed the remaining job in 22 days. How many days C alone takes to complete the entire job?

4.  A and B can do a job together in 7 days. A is 13/4 times as efficient as B. The same job can be done by A alone in

5.  A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:

6. Amit and Sujit together can complete an assignment of data entry in 5 days. Sujit?s speed is 80% of Amit?s speed and the total key depressions in the assignment are 5,76,000. What Amit?s speed in key depression per hour if they work for 8 hours a day?

7. Compute the number of days which all of P, Q and R working together would take to complete the work, if P and Q together can do a piece of work in 36 days Q and R in 18 days and R and P in 24 days. 

8. If 40 men or 60 women or 80 children can do a piece of work in 6 months, then 10 women and 10 children together do half of the work in

9. If 16 men or 20 women can do a piece of work in 25 days. In what dme will 28 men and 15 women do it?

10. If 4 men or 6 women can do a piece of work in 12 days working 7 hours a day; how marry days will it take to complete a work twice as large with 10 men and 3 women working together 8 hours a day?