**If 4 boys and 3 girls together can do a piece of work in 8 days, 6 boys and 9 girls can do it in 9 days. In how many days can 20 boys and 6 girls do the same work?**

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**20 men can complete two-third of work in 60 days. Then how many more men are required to finish the remaining work in 20 more days?**

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**Vivek and Vinay alone can do a piece piece of work in 20 and 25 days respectively. In how many days will they take to finish the work if they work together?**

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**Ramesh and Ravi alone can do a piece of work in 20 and 25 days. On which day will they finish their work if they work together?**

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### Wrong!

**If 30 men can complete one- third of work in 20 days. How many men are required to finish the rest of work in 15 more days?**

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**A can do a piece of work in 10 days and B in 15 days. If they work together, in how many days the work will be completed?**

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**If 30 men can complete one- third of work in 20 days. How many are more men required to finish the rest of work in 15 more days?**

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**If 25 labours working 7 hours a day can earn Rs. 750 per week, then how many hours should 30 labours work a day to earn Rs.900 per week?**

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**30 men can complete one- third of work in 20 days. How many men are required to finish the whole work in 15 days?**

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### Wrong!

**15 men can do a piece of work in 20 days. How many men are needed to complete the work in 30 days?**

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