A and B are the roots of equation x2 - 13x + k = 0. If A - B = 5, what is the value of k?
A boat takes 7 hours to cover 294 km upstream and 9 hours to cover 486 km downstream. Find the time taken by the boat to cover 720 km upstream and 616 k...
Open, print and save button are all located on_____________
Amit alone can complete a piece of work in 28(1/8) days while Amit and Bhanu together can complete the same work in 9 days. Bhanu started the work and a...
The downstream speed of a boat is 4 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
Jaya goes to station at a speed of 6 km / hr and returns back at a speed of 9 km / hr. If she takes 5 hrs. in all. Find the distance between her home an...
If the product of roots of equation x2 - 3(2p+4)x + (p2 - 24p + 145) = 0 is unity, then 'p' can take the values as
A person travelled a distance of 190 km in 5 hours. He travelled partly on a car at the speed of 70 kmph and partly on cycle at 30 kmph. What is the dis...
A train of length 260 m crosses another train of length 120 m running is opposite direction in 5 sec. If speed of longer train is 90 km/h, then in what ...
Two trains of lengths 100 m and 90 m are running with speeds of 60 km/hr and 57 km/hr respectively towards each other on parallel lines. If they are 70 ...
