Question
A is twice efficient as B and B can do a piece of work in 40 days. B started the work and after a few days A joined him. They completed the work in 32 days. From the starting, for how many days they worked together?
B’s one day work = `1/40` A’s one day work = `1/20` (A + B) one day work = `1/40+1/20=(1+2)/40=3/40` Now, let us assume A joined B after (32 - x ) days then, `(32-x)/40+(x xx3)/40=1` `=>(32-x+3x)/40=1` 32 + 2x = 40 x = 4 More Time and work Questions
- A alone can complete a piece of work in 12 days and B alone can complete it in 18 days. If they work together, in how many days will they complete the work...
- A man, a woman and a boy can do a work in 4, 8, 32 days respectively. How many boys are required with 1 man and 1 woman to complete the same work in&n...
- Before servicing, a car runs at a speed of 20 km/hr while after servicing, it runs at a speed of 30 km/h. After servicing the car covers a certain distance...
- P’s 3 days work is equal to Q’s 5 days work. If P and Q together can complete the work in 30 days then how much time Q will take to complete 75% of the wor...
- Anil and Ashish receive Rs.2000 for work of 10 days. If Anil is 4 times efficient than Ashish, then find the daily wage received by Ashish.
- There is enough food in a camp to last for 30 days if each of the 60 soldiers present at the camp eat 4 times a day. After 12 days, 12 more soldiers joined...
- 5 girls can do a piece of work in 9 days, 4 boys can do the same piece of work in 8 days, 6 men do the same piece of work in 2 days and 4 women can d...
- 'A' is 40% less productive compared to 'B', who is 25% more productive than 'C'. Together, they can finish a task in 45 days. After 'B' and 'C' have collab...
- P’s 5 days work is equal to Q’s 6 days work. If P and Q together can complete the work in 25 days then how much time Q will take to complete 80% of the wor...
- 40 men can complete a piece of work in 40 days. ‘x’ men started the work and after 30 days 64 more men joined them so that whole work was finished in the d...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
