4 men can cross a bridge in 3,7,13, 17 minutes. Only two can cross the bridge at a time. The time taken by the two to cross the bridge is equal to the time taken by the slowest person of the two. Find the minimum time to all of them cross the bridge?
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the probability of getting at least in a single through of three coins is
4 thieves rob a bakery of the breadone after the other. each thief takes half of what is present ,& half a bread.if at the end 3 bread remains,what is the no of bread that was present initiallly?
If it takes five minutes to boil one egg, how long will it take to boil four eggs?
If 6 years are subtracted from the present age of the remainder is divided by 18, then the present age of his grandson Anup is obtained. If Anup is 2 years younger to Madan whose age is 5 years,then what is Gagan's present age?
A>B,B>C,C=D,D>E,then which is greatest a)A/B b) A/C c) A/E d)none
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A cloth merchant claims to sell is material at cost price but uses a scale which reads 1 meter for every 95 centimeter. Find the gain percent?
Find the hypotaneous of a right angle isosceles triangle whose area is 50.
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If a man can swim downstream at 6kmph and upstream at 2kmph, his speed in still water is: It takes 30 days to fill a laboratory dish with bacteria. If the size of the bactiria doubles each day, how long did it take for the bactiria to fill one half of dish?
How many liters of water must be added to 30 liters of alcohol to make a solution that is 25%