Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
Amutha can weave a saree in 18 days.
Anjali is twice as good as Amutha.
ie. If Amutha weave for 2 days, Anjali do the same work in 1 day.
If Anjali weave the saree she will take
`18/2` = 9 days
Hence time taken by them together ab
= `"ab"/("a" + "b")` days
= `(18 xx 9)/(18 + 9)`
= `(18 xx 9)/27`
= `(6 xx 1)/3`
= 6 days
In 6 days they complete weaving the saree.
APPEARS IN
संबंधित प्रश्न
A can do a work in 24 days. If A and B together can finish the work in 6 days, then B alone can finish the work in ________ days
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 can do a piece of work in 12 hours, B and C can do it 3 hours whereas A and C can do it in 6 hours. How long will B alone take to do the same work?
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
A is thrice as fast as B. If B can do a piece of work in 24 days then, find the number of days they will take to complete the work together
If 32 men working 12 hours a day can do a work in 15 days, then how many men working 10 hours a day can do double that work in 24 days?
If the numerator of a fraction is increased by 50% and the denominator is decreased by 20%, then it becomes `3/5`. Find the original fraction
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?
