A train 100 meter long takes 3 second to cross a man walking at the rate of 6km/hr in a direction opposite to that of the train. Find the speed of the train.
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A father age is 30 years older than his son and he has thrice of his son age after 5 years.Find father's age?
who are the noble prize winners for 2008
a survey of 100 students at new england college showed the following:7 take english,history and language,17 take english and history,15 take english and language,18 take history and language,48 take english, 49 take history,38 take language.draw a venn diagram and answer the questions how many students a)take history but neither of the other two? b)take english and history but not language? c)take none of the three? d)take exactly two of the three? e) do not take a language? (explanation also needed pls)
A dealer sells 3 sets at Rs.2400 each ,one at 20% gain and the other at 20% loss. what is the overall gain or loss.
when chlorine gas is leak out what will you do?
The price of sugar increases by 20%, by what % house-wife should reduce the consumption of sugar so that expenditure on sugar can be same as before
if 2^51 is 8 then 2^48 is ?
Mixed Economy can be defined as a form of organization where the elements of both capitalist economy and socialist economy are found.is it true or false?
The sum of the series 1 + 1(1+1/n) + 3(1+1/n)2 + ..... is equal to?
What is the distance travelled by a ball that falls from a height of 8 mts and each time it bounces half the distance back?
2 hours after a freight train leaves Delhi a passenger train leaves the same station travelling in the same direction at an average speed of 16 km/hr. After travelling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was?
There is a 5digit no. 3 pairs of sum is eleven each. Last digit is 3 times the first one. 3 rd digit is 3 less than the second. 4 th digit is 4 more than the second one. Find the digit.