Advertisements
Advertisements
प्रश्न
Choose the most appropriate option
‘A’ and ‘B’ complete a work in 12 days, ‘B’ and ‘C’ in 8 days and ‘C’ and ‘A’ in 16 days. ‘A’ left after working for 3 days. In how many days more will ‘B’ and ‘C’ finish the remaining work?
विकल्प
`3 3/4`
`4 3/4`
`6 5/6`
`7 3/4`
Advertisements
उत्तर
`4 3/4`
Explanation:
A, B, and C together can do work in
`=(2xx12xx8xx16)/(12xx8+8xx16+16xx12)`
`=96/13` days
Work is done by all in 3 days`=13/96xx3=39/96`
∴ Remaining work`=1-39/96=57/96`, which is to done by B and C.
∴ B and C can do the remaining work in `57/96xx8`
∴`57/12=4 3/4` days.
APPEARS IN
संबंधित प्रश्न
Arun can climb a Coconut tree by 1.5 feet by each lift; however, he slips 0.5 feet every time he makes the next lift. How many individual lifts he will have to reach the top of the Coconut tree of 18.5 feet?
Choose the most appropriate option.
Two men and seven boys can do work in 14 days. Three men and eight boys can do the same work in 11 days. Further, eight men and six boys can do three times the amount of this work in:
Solve the following question and mark the best possible option.
Four gardeners with four grass mowers can mow 400 square meters of ground in four hours. How long would it take for eight gardeners with eight grass mowers to mow 800 square meters of the ground?
10 men can finish the construction of a hut in 8 days. How many men are needed to finish the same in half a day?
16 men can do a piece of work in 16 days. 4 days after they started the work 8 more men joined them. How many days will they now take to complete the remaining work?
A contractor Abhay Singh employed some men to do a piece of work which can be done by 16 men in 14 days. At the end of 5 days, 7 of the men stopped working and 3 days later half of the remainder stopped working; the rest finished the work in 5 days. What is the number of men originally employed?
A can complete a piece of work in 18 days and B can complete the same work in half time taken by A. Then, working together, what part of the same work they can complete in a day?
A water tank has three taps A, B and C. A fills four buckets in 24 minutes, B fills 8 buckets in 1 hour and C fills 2 buckets in 20 minutes. If all the taps are opened together a full tank is emptied in 2 hours. If a bucket can hold 5 litres of water what is the capacity of the tank?
Pipes P and Q can fill a tank in 5 and 6 h respectively. Pipe R can empty it in 12 h. If all the three pipes are opened together, then the tank will be filled in :
15 men and 7 women can mow a field in 10 days. In how many days can 30 men and 14 women mow a field thrice as big as the previous one?
