There are four bus routes from A to B and three bus routes between B and C.A man can travel a round trip in number of ways from A to C via B.If he doesn't want to use a bus route more than once, in how many ways he can make a round trip ?
x,y and z are three sums of money such that y is the simple interest on x and z is the simple interest on y for the same time and with the same rate, Then what is true:
A)x^2=yz B)z^2=xy C)y^2=xz D)xyz=1
9 years ago A's age and B's age were in the ratio of 5:7. Which of the following cannot be the ratio of their ages five years from now:
a) 11/13 b)13:19 c)21.25 d)15:16
Give explanation
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?
frank
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