M is thrice as good as workman as N and together they finish a piece of work in 30 days. In how many days will M alone finish the work?1). 502). 403). 604). 45
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1. If a work can be completed by 96 boys or 36 men in 20 days, the number of days required to complete the work by 8 boys and 12 men is
2. A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. C can alone do the work in
3. A daily-wage labourer was engaged for a certain number of days for Rs. 5,750; but being absent on some of those days he was paid only Rs. 5,000. What was his maximum possible daily wage ?
4. A certain number of men can do a work in 60 days. If there were eight more men, it could be completed in 10 days less . How many men were there in the beginning?
5. If 10 men can do a piece of work in 12 days, the time taken by 12 men to do the same piece of work will be
6. A alone can complete a work in 16 days and B alone can complete in 12 days. Starting with A they work on alternate days. The total work will be completed in?
7. 3 boys and 4 girls can do a piece of work in 4.5 days. Also, 9 boys and 6 girls can do the same work in 2 days. In how many days will 6 boys and 8 girls finish the same work?
8. A work can be finished In 14 days by 36 workers. If the work were to be finished in 8 days, how many additional workers would be required ?
9. A tyre has two punctures. The first puncture alone would have made the tyre flat in 10 min and second alone would have done it in 20min. If air leaks out at a constant rate how long does it take both
10. A and B can do a work in 18 and 24 days respectively . They worked together for 8 days and then A left. The remaining work was finished by B in :
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