The correct answer is D
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...
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...
If the sum of the squares of the roots of p2 - (x-2)p - (x+1) = 0 is 5 then what is the value of x.
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...
If x and y are the roots of x2 + x + 3 = 0, then (x11 + y11)/(x-11 + y-11) is equal to:
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...
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...
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...
