Advertisements
Advertisements
प्रश्न
A can do a work In 45 days. He works at it for 15 days and then, B alone finishes the remaining work in 24 days. Find the time taken to complete 80% of the work, if they work together
Advertisements
उत्तर
A complete the work in 45 days.
∴ A’s 1 day work = `1/45`
A's 15 days work = `15/45 = 1/3`
Remaining work = `1 - 1/3 = (3 - 1)/3 = 2/3`
B finishes `2/3` rd work in 24 days
B's 1 day work = `(2/3)/24`
= `2/(3 xx 24)`
= `1/36`
(A + B)'s 1 day work = `1/45 + 1/36`
| 9 | 45, 36 |
| 5, 4 |
= `(4 + 5)/180`
= `9/180`
= `1/20`
Let x days required
∴ `x/20 = 80/100`
⇒ x = `80/100 xx 20`
= 16 days
APPEARS IN
संबंधित प्रश्न
A can finish a job in 3 days whereas B finishes it in 6 days. The time taken to complete the job working together is __________ days
A alone can do a piece of work in 35 days. If B is 40% more efficient than A, then B will finish the work in ___________ days
A alone can do a work in 10 days and B alone in 15 days. They undertook the work for ₹ 200000. The amount that A will get is ________
210 men working 12 hours a day can finish a job in 18 days. How many men are required to finish the job in 20 days working 14 hours a day?
A cement factory makes 7000 cement bags in 12 days with the help of 36 machines. How many bags can be made in 18 days using 24 machines?
A soap factory produces 9600 soaps in 6 days working 15 hours a day. In how many days will it produce 14400 soaps working 3 more hours a day?
If 6 container lorries can transport 135 tonnes of goods in 5 days, how many more lorries are required to transport 180 tonnes of goods in 4 days?
A and B can do a piece of work in 12 days, while B and C can do it in 15 days where as A and C can do it in 20 days. How long would each take to do the same work?
Amutha can weave a saree in 18 days. Anjali is twice as good a weaver as Amutha. If both of them weave together, then in how many days can they complete weaving the saree?
A small-scale company undertakes an agreement to make 540 motor pumps in 150 days and employs 40 men for the work. After 75 days, the company could make only 180 motor pumps. How many more men should the company employees so that the work is completed on time as per the agreement?
