Question
Train A running at a speed of 45 km/hr crosses train B
in 30 seconds. Find the speed of train B (in km/hr), if the sum of the length of train A and B is 550 meters and both trains running in the opposite direction.Solution
Let speed of train B be ‘x’ km/hr. According to question, => 30(45 + x) × (5/18) = 550 => 1350 + 30x = 1980 => 30x = 630 => x = 21 km/hr
8Â Â Â 8Â Â Â 12Â Â Â 24Â Â Â Â 60Â Â Â Â Â ?
64, 66, 69, 74, 81, ?
What value should come in the place of (?) in the following number series?
5, 16, 51, 158, 481, ?, 4367
What should come in place of (?) question mark in the following number series.
1, 2, 6, 24, 120, ?
- What will come in place of the question mark (?) in the following series?
712, ?, 576, 508, 440, 372 What will come in place of the question mark (?) in the following series?
48, 291, ?, 399, 408, 411
126 56 ? 12 10 2
...What will come in place of (?) in the following number series problems?Â
90, 84, 120, 113, 162, ?, 218Â
In each of the following number series, one term is missing. Find the missing term.
1, 4, 9, 16, 25, ?
(14.073)² + (32.103)² + (43.9653)² + (52.983)² + ? = (102.45)² + (98.007)²
Relevant for Exams:
