Question
Barry and Iris set off simultaneously from point A,
aiming to reach point B. Barry travels faster than Iris, with their speeds being in a ratio of 5:3. If Iris arrives at point B one hour later than Barry, how long does it take Barry to complete the journey from point A to point B?Solution
Ratio of speed of Barry: Iris = 5: 3 Therefore, time taken by Barry to point B from point A = {1/ (5 – 3)} × 3 = 1.5 hours Hence, option b.
152    142    122   ?     52    2
21, 37, 73, 137, ?, 381
What will come in place of the question mark (?) in the following series?
12, 13, 27, ?, 329, 1646
What will come in place of the question mark (?) in the following series?
325, 292, 262, 229, ?, 166
4, 4, 12, 60, ?, 3780
2807, 1400, 697, 346, 171, 84, 41, ?
254, ?, 1022, 1150, 1214, 1246
143 Â Â Â Â 119Â Â Â Â 107Â Â Â Â 101Â Â Â Â Â 98Â Â Â Â ?
204, 401, 640, ?, 1105, 1406
What will come in place of the question mark (?) in the following series?
60, 94, 184, 464, 1388, ?