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ATQ, 486 ÷ 3 = 162 162 ÷ 3 = 54 54 ÷ 3 = 18 18 ÷ 3 = 6 6 ÷ 3 = 2 Therefore, 54 should come in the place of 51.
An Aeroplane flies along a Square field @ 50, 100, 200 and 400 km/hours respectively. Then find the Average speed of the aeroplane during the whole jour...
Abhishek, Yogesh and Sumit start from the same place and travel in the same direction at the speed of 40 km, 60km and 90km per hour respectively. Yoges...
A cyclist has to cover 180 km. She rides the first 20% at 25 kmph, half of the distance at 30 kmph, and the remainder at 20 kmph. What is her approximat...
A train 'B' speeding with 100 kmph crosses another train C, running in the same direction, in 2 mins. If the length of the train B and C be 150m and 250...
A train 200 m long passes a pole in 10 seconds. How long will it take to pass another train 300 m long running in the opposite direction at a speed of 3...
Ajay and Vishal left the place ‘X’ with different speeds which are in the ratio 3:2 respectively. Ajay left the place 42 seconds after Vishal. If af...
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...
Resham travels 60 km at 20 km/h by cycle, 120 km at 60 km/h by car, and the remaining 10 km on foot at 2.5 km/h. Find her average speed for the whole jo...
Before servicing, a car runs at a speed of 45 km/hr while after servicing, it runs at a speed of 90 km/h. After servicing the car covers a certain dista...
1000 metres long train crosses a man who is moving in the same direction with a certain speed, in 40 seconds. If the same train can cross a tree in 20 s...