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Distance = 220 km Speed of train 1 = 24 km/hr Speed of train 2 = 31 km/hr Relative speed = 24 + 31 = 55 km/hr Therefore, speed = distance/time ⇒ 55 = 220/Time ⇒ Time = 220/55 = 4 hrs
12, 16, 25, 41, 66, ?
8 9 ? 57 164 945
...100 221 77 245 50 275
19, 37, 65, 91, 127, 169
44 79 114 149 184 ?
D irection: Which of the following will replace ‘?’ in the following series.
543,’?’, 564 ,588, 660
...16 18 14 20 12 ?
...60000 2400 120 8 0.8 ?
...(32.03 + 111.98) ÷ 18.211 = 89.9 – 20.23% of ?
24, 33, 50, ?, 108, 149
