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Let the speed of the goods train be ‘s’ km/hr Distance covered by goods train in 16 hrs = s x 16 km Distance covered by express train in 7 hrs = 7 x 112 km Distance covered by goods train in 16 hrs = Distance covered by express train in 7 hrs So, 16s = 7 × 112 ⇒ 16s = 784 ⇒ s = 784/16 = 49 So, Speed of goods train = 49 km/hr
(14.073)² + (32.103)² + (43.9653)² + (52.983)² + ? = (102.45)² + (98.007)²
9 14 38 129 ? 2705 16260
...Find the missing character.
7, 6, 10, 27, 104, ?
7 12 33 ? 635 3804
...150 - 10× ( 7 - 2)/4× 8 = ?
...Find the missing number in the given number series.
1, 2, 3, 6, 11, 20, ?
12 17 44 147 ? 3065 18420
...80, ?, 240, 80, 20, 4
