Question
In each of the number-pairs, the second number is
obtained by performing a certain mathematical operation on the first number. Three of the following pairs follow the same pattern and thus form a group. Select the number-pair that does NOT belong to that group.Solution
The logic is- From option-1 18 x 18 +11 = 335 From option-2 14 x 14 + 11 = 207 From option-3 16 x 16 + 11 = 267 From option-4 12 x 12 + 11 = 155
A train 250 metre long takes 25 sec to cross a man running at a speed of 9 km/hr in the direction same to that of train. What is the speed of the train?
Two trains of same length are running in parallel tracks in the same direction with speed 45 km/hr and 105 km/hr respectively. The latter completely cro...
Train A departs from a station at a speed of 195 km/h, 16 hours following the departure of Train B. It takes Train A 10 hours to catch up to Train B. Ca...
- A train, 'A,' which is 180 meters long, takes 14 seconds to cross a 100-meter-long bridge. If the lengths of trains 'A' and 'B' are in a ratio of 6:5, and ...
1440 metres long train crosses a man who is moving in the same direction with a certain speed in 30 seconds. If the same train can cross a pole in 24 se...
- A truck moving at 30 km/h is overtaken by a train in 20 seconds. If the train is travelling at twice the speed of the truck, calculate its length.
A train of length 'y' meters takes 20 seconds to pass a signal pole. It also crosses a bridge that is (y + 480) meters long in 80...
A 250-meter-long train crosses a 150-meter-long train coming from the opposite direction in 20 seconds. If the speed of the first train is 45 km/h, then...
A train can cross a pole in 42 seconds. While if the train increased its speed by 55% then time taken by it to cross 231 metres long platform is 42 seco...
A train can cross a man standing on a platform of 250 metres length in 70 seconds and can cross the platform in 87.5 seconds. Find the length of the train.
Relevant for Exams:
