Question
If a bicycle can cover 65 km in 10 hours while a car can
cover 90 km in 5 hours then find the average speed of car.Solution
For the Bicycle: Distance = 65 km Time = 10 hours Average Speed of Bicycle = 65/10 = 6.5 km/h
For the Car: Distance = 90 km Time = 5 hours Average Speed of Car = 90/5 = 18 km/h Hence, Average speed of the bicycle = 6.5 km/h and Average speed of the car = 18 km/h
7, 26, 238, 962, 8522, 34078
12                          13                         30                     �...
14Â Â Â 42Â Â Â Â 105Â Â Â Â 210Â Â Â Â Â 315Â Â Â ?
8      24       48      144      ?     864
...Find sum of first n terms: 2 + 6 + 12 + 20 + 30 + …
6Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â Â Â Â Â 218Â Â Â Â Â Â Â Â Â 3486Â Â Â Â Â Â Â 43575
10      �...
Which of the following is true about the relation between the wrong numbers in the following series?
I: 10, 18, 29, 40, 54, 70
II: 15, 24,...
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 7 6
15 ? 21
44 68 60
100Â Â Â Â 221Â Â Â Â 77Â Â Â Â 245Â Â Â Â 50Â Â Â 275
22   39    58    81   ?      141
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