Question
Two trains running in a opposite directions crosses pole
in 84s and 57s respectively and they cross each other in 72s. Find the ratio of their speeds?Solution

14, 86, 150, ?, 254, 294
196, 167, 144, ?, 108, 95
7.5% of 820.68 - 95% of 945.06 + 12.8% of 1050= ?
What will come in place of the question mark (?) in the following series?
92, 153, 220, ?, 364, 443
71, 79, 88, 152, ?, 393
625, 125, 375, 75, 225, 45, ?
What will come in place of the question mark (?) in the following series?
7, 19, 55, 163, 487, ?
45, ?, 84, 114, 151, 195
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?Find the missing number in the given number series.
1, 2, 3, 6, 11, 20, ?