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The correct answer is A
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 both the equations I and II given below are added, then find the product of roots of newly formed equation.
I: 3x2 + 9x + 5
...
Train A running at a speed of 46 km/hr. crosses train B in 30 seconds. Find the speed of train B (in km/hr), if the sum of the length of train A and B i...
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 ...
Time is taken by two trains running in opposite directions to cross a man standing on the platform in 28 seconds and 18 seconds respectively. It took 24...
A set (Set ‘P’) of 4 pipes can fill ______% of a tank in 5 minutes while another of set (Set ‘Q’) of 5 pipes can empty the 60% of completely fil...
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 and B are the roots of equation x2 - 13x + k = 0. If A - B = 5, what is the value of k?
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
The ratio between the speed of a bus and train is 15:27 respectively. Also, a car covered a distance of 720 km in 9 hours. The speed of the bus is three...
