If 3 men or 6 boys can do a piece of work in 10 days,working 7 hours a day; how many days will it take to complete a piece of work twice as large with 6 men and 2 boys working together for 8 hours a day ?

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per day wage rate of workers is reduced 50% due to economic slowdown. After one year, the wage rate is increased by 60% . If the per day wage rate before the decrease was Tk. 100, then what is the per day wage rate now?

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You cycled eastwards 6 Kilometers , them turning right you cycled 5 km. You turned right again and cycled 6 km. How far were you then from the starting point ?

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If 4 is subtracted from one - fourth of a number , the result is 20. The number is

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