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 ?
If Thursday was the day before yesterday five days ago, what is the least number of days ago when Sunday was three days before the day after tomorrow. Kindly explain in detail how to approach the problem.
A number of friends decided to go on a picnic and planned to spend Rs.960 on food. Four of them, however, did not turn up. As a consequence, the remaining ones had to contribute Rs.40 each extra. The number of those who attended the picnic was:
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
Two candles have different lengths and thickness. The shorter lasts 11 hours and the longer 7 hours,when both are lit simultaneously. If after 3 hours of their being lit together at the same time, both have the same length, then what is the ratio of their original lengths?