Question
Two individuals, 'A' and 'B', are running around a
circular track with a total length of 2000 meters. 'A' runs clockwise at a speed of 5 m/s, while 'B' runs anticlockwise at a speed of 7.5 m/s. What is the distance from the starting point to the nearest point where 'A' and 'B' will meet, relative to their starting point?Solution
Ratio of speeds of 'A' and 'B' = 5:7.5 = 2:3 So, number of meeting points = 2 + 3 = 5 So, distance between each meeting point = 2000 ÷ 5 = 400 metres So, required distance = 400 metres
35 36 68 207 836 4205
...6 3.5 2.5 ? 8.5 23.75
...16, 54, 128, ‘?’, 432,686
7   24    43    66   ?      126
35    57    101    189    ?     717
130 114 106 102 100 ?
43Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 44Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 48Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
If  2  4  6  x  14  28  30
Then, x³+ 2 x+1 = ?
17 ? 33 44 57 72
...35Â Â Â Â Â Â Â Â Â Â 36Â Â Â Â Â Â Â Â Â Â 40Â Â Â Â Â Â Â Â Â Â 49Â Â Â Â Â Â Â Â Â Â 65Â Â Â Â Â Â Â Â Â Â ?
...
