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
The difference between two numbers is 13th when the larger number is divided by the smaller one the quotient is 6 and the remainder is 15 the smaller number is