15 men take 21 days of 8 hrs. each to do a piece of work. How many days of 6 hrs. each would it take for 21 women if 3 women do as much work as 2 men?
747A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A. How many days will they take to do the work together ?
734A cylinder is 6 cms in diameter and 6 cms in height. If spheres of the same size are made from the material obtained, what is the diameter of each sphere?
829A father is 30 years older than his son however he will be only thrice as old as the son after 5 years what is father's present age ?
882A man spends half of his salary on household expenses, 1/4th for rent, 1/5th for travel expenses, the man deposits the rest in a bank. If his monthly deposits in the bank amount 50, what is his monthly salary ?
849How many mashes are there in 1 square meter of wire gauge if each mesh is 8mm long and 5mm wide ?
823If a sum of money compound annually amounts of thrice itself in 3 years. In how many years will it become 9 times itself?
768The difference b/w the compound interest payble half yearly and the simple interest on a certain sum lent out at 10% p.a for 1 year is Rs 25. What is the sum?
826The price of sugar increases by 20%, by what % should a housewife reduce the consumption of sugar so that expenditure on sugar can be same as before ?
788There are 12 boys and 15 girls, How many different dancing groups can be formed with 2 boys and 3 girls. Which of the following fractions is less than 1/3?
993Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him. What is the length of faster train?
722What is the smallest number by which 2880 must be divided in order to make it into a perfect square ?
826If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain?
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