x 3 + y 3 + z 3 − 3xyz (x + y + z)(x 2 + y 2 + z 2 − xy − yz − zx) x = 1.2, y = 0.8, z = 0.7 = (1.2)3 +(0.8)3 +(0.73 −2.016 / 1.35[(1.2)2 +(0.8)2 +(0.7)2 −0.96−0.84−0.56] = ((2.7)((1.2)2 +(0.8)2 +(0.7)2 −0.96−0.84−0.56) / 1.35[(1.2)2 +(0.8)2 +(0.7)2 −0.96−0.84−0.56] = 2.7 / 1.35 = 2
A train covers a certain distance at a speed of 48 km/h and the next same distance with a speed of 60 km/h and the next same distance with a speed of 80...
A policeman saw a thief from a distance of 450 m. When the policeman started chasing him, the thief also started running. The ratio of speeds of the th...
A Policeman spotted a thief 30 meters ahead of him. The moment they both saw each other they started running in the same direction on the same track. Th...
A train crosses a pole in 12 sec, and a bridge of length 170 m in 36 sec. Then the speed of the train is:
How much time a train 200 metres long running at the speed of 72 km/hr take to cross a bridge 180 metres in length?
The speed of a train is 72 km/hr and it takes 12 seconds to cross a man. Find the time taken by train to cross a platform if the ratio of the length of ...
X started to run from point ‘A’ to ‘B’ at a speed of 28 km/hr at 9:00 am and Y started to run from point ‘B’ to ‘A’ at a speed of 12 km/...
Walking at 3/ 4 of his usual speed, a man is 1 1/ 2 hr late. His usual time to cover the same distance (in hours) is?
Krishna covers a certain distance by train at 25 km/hr. and the equal distance on foot at 4 km/hr. If the time taken by him for the whole journey be 5 ...
In a 500 meter marathon, if Akhil beats Suraj by 160 meters and Suraj beats Puneet by 250 meters, then find the distance by which Akhil beats ‘C’.
