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A and B can finish a work in 20 days. A alone can do \[\frac{1}{5}\] th of the work in 12 days. In how many days can B alone do it?
Concept: undefined >> undefined
A and B can do a piece of work in 20 days and B in 15 days. They work together for 2 days and then A goes away. In how many days will B finish the remaining work?
Concept: undefined >> undefined
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A can do a piece of work in 40 days and B in 45 days. They work together for 10 days and then B goes away. In how many days will A finish the remaining work?
Concept: undefined >> undefined
Aasheesh can paint his doll in 20 minutes and his sister Chinki can do so in 25 minutes. They paint the doll together for five minutes. At this juncture they have a quarrel and Chinki withdraws from painting. In how many minutes will Aasheesh finish the painting of the remaining doll?
Concept: undefined >> undefined
A and B can do a piece of work in 6 days and 4 days respectively. A started the work; worked at it for 2 days and then was joined by B. Find the total time taken to complete the work.
Concept: undefined >> undefined
6 men can complete the electric fitting in a building in 7 days. How many days will it take if 21 men do the job?
Concept: undefined >> undefined
8 men can do a piece of work in 9 days. In how many days will 6 men do it?
Concept: undefined >> undefined
Reema weaves 35 baskets in 25 days. In how many days will she weave 55 baskets?
Concept: undefined >> undefined
Neha types 75 pages in 14 hours. How many pages will she type in 20 hours?
Concept: undefined >> undefined
If 12 boys earn Rs 840 in 7 days, what will 15 boys earn in 6 days?
Concept: undefined >> undefined
If 25 men earn Rs 1000 in 10 days, how much will 15 men earn in 15 days?
Concept: undefined >> undefined
Working 8 hours a day, Ashu can copy a book in 18 days. How many hours a day should he work so as to finish the work in 12 days?
Concept: undefined >> undefined
If 9 girls can prepare 135 garlands in 3 hours, how many girls are needed to prepare 270 garlands in 1 hour?
Concept: undefined >> undefined
A cistern can be filled by one tap in 8 hours, and by another in 4 hours. How long will it take to fill the cistern if both taps are opened together?
Concept: undefined >> undefined
Two taps A and B can fill an overhead tank in 10 hours and 15 hours respectively. Both the taps are opened for 4 hours and they B is turned off. How much time will A take to fill the remaining tank?
Concept: undefined >> undefined
A pipe can fill a cistern in 10 hours. Due to a leak in the bottom it is filled in 12 hours. When the cistern is full, in how much time will it be emptied by the leak?
Concept: undefined >> undefined
A cistern has two inlets A and B which can fill it in 12 hours and 15 hours respectively. An outlet can empty the full cistern in 10 hours. If all the three pipes are opened together in the empty cistern, how much time will they take to fill the cistern completely?
Concept: undefined >> undefined
A cistern can be filled by a tap in 4 hours and emptied by an outlet pipe in 6 hours. How long will it take to fill the cistern if both the tap and the pipe are opened together?
Concept: undefined >> undefined
A plot is in the form of a rectangle ABCD having semi-circle on BC as shown in Fig. 20.23. If AB = 60 m and BC = 28 m, find the area of the plot.
Concept: undefined >> undefined
A playground has the shape of a rectangle, with two semi-circles on its smaller sides as diameters, added to its outside. If the sides of the rectangle are 36 m and 24.5 m, find the area of the playground. (Take π = 22/7).
Concept: undefined >> undefined
