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Let speed of boat = u, and stream = v From I: u + v = 24/4= 6 km/hr From II: v = 2u/5 From III: u - v = 24/8= 3 So solving I and II ‘u’ can be found. Similarly by solving II and III and by solving I and III
15, 120, 840, 5040, ?, 100800
11 22.5 47 102 236 ?
...What will come in place of the question mark (?) in the following series?
2.5, 6.5, 18.5, 54.5, 162.5, 486.5, ?
140, 146, 158, 176, ?, 230
17 18 14 ? 7 32
...10, 10, 30, 150, ?, 9450
17, 19, 41, 127, 513, ?
116, 118, 124, 136, 156, ?
-1, 5, 23, 59, ?
84, 97, ?, 162, 214, 279
