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Downstream speed = 48/3 = 16 km/hr Upstream speed = 48/12 = 4 km/hr So speed of boat in still water = (16 + 4)/2 = 10 km/hr
What should come in place of the question mark (?) in the given series?
153, 166, 159, 185, 171, ?
28 57 172 689 ? 20677
...2 3 3 ? 49 254
...Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 7 6
15 ? 21
44 68 60
40, 20, 30, 75, ?, 1181.25
979.001 + 4.0087× 82.79 = ?
...16 9 ? 13.25 22.625 36.3125
...5, 14, 41, 122, 365, 1094, ?
If 14, 32, x, 50, -13, 86,
then, find the value of (10x + 5x – 20)?
...5, 8, 17, ?, 37, 48
