Paul can complete a project in 6 days. with the help of an intern, he can do it in 4 days.in what time can the intern complete the work alone.
a) 6 days
b) 6 1/4 days
c) 12 days
d) 12 1/2 days
Two trains are opposite to each other , bird is on one train . Speed of both trains are 25km/hr & 50 km apart . When trains starts(against each other) , bird also start flying from one train to other , till they clash. Speed of bird is 100km/hr . Distance traveled by bird till trains clash. ?
A. 100
B. 86
C. 98
D. 45
One card is drawn from a pack of 52 cards. each of the 52 cards being equally likely to be drawn. find the probability that the card drawn is '9' or hearts.
a)1/13
b)1/26
c)1/52
d)3/52
Medicine makes people ill, mathematics make them sad and theology makes them sinful.
Martin Luther
Students attend our lectures, not because the mathematics we teach ‘makes lots of fun’ for us, but because they believe they can learn some essential knowledge from us. And each of our young students has only one life to live. We should therefore be a