Start learning 50% faster. Sign in now
Since, the time taken by A and B is same, therefore the ratio of the distance covered by them will be equal to the ratio of their speeds. Therefore, ratio of the distance covered by A and B = 20:30 = 2:3 Let the distance covered by A and B be 2x km and 3x km According to the question, 3x – 2x = 18 Or, x = 18 Therefore, distance between them before starting = 2x + 3x = 5x = 90 km
12Â Â Â Â Â Â Â Â Â Â Â Â Â 10Â Â Â Â Â Â Â Â Â Â Â Â 13Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 18.5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25.50Â Â Â Â Â Â Â ...
69    119    156    ?     199    209
8Â Â Â Â Â 24Â Â Â Â Â Â 60Â Â Â Â Â Â 120Â Â Â Â Â 180Â Â Â Â Â ?
...3, 4, 10, 33, 136, ?, 4116
5 14 56 220 1125 6786
...1, 8, 22, ?, 71, 106, 148
3 12 48 192 768 ?
1930 1805 1589 1246 734 ?
...15Â Â Â Â Â Â Â Â Â Â Â Â 13 Â Â Â Â Â Â Â Â 28 Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24 Â Â Â Â Â Â Â Â Â Â Â Â Â Â 54 Â Â Â Â Â Â Â Â 52
...1156Â Â Â Â Â Â Â 372Â Â Â Â Â Â Â Â Â 997Â Â Â Â Â Â Â Â Â 513Â Â Â Â Â Â Â Â Â 874Â Â Â Â Â Â Â Â Â 618
1936     a        Â...