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Let the speed of the stream be x km/hr and both the boats meet after t hours According to the question, ⇒ (8 + x) t + (11 – x) t = 76 ⇒ 8t + 11t = 76 ⇒ 19t = 76 ⇒ t = 76/19 = 4 hours
4, 12, 36, 108, ?, 396
24, 42, 60, ?, 96, 114
4, 5, 11, 34, 137, ?
What will come in the place of questions (?) mark in the following questions.
40, 25, 30, 50, 105, ?
25, 30, 50, 60, 80, ?
8 24 48 144 288 ?
...1029, 1030, 1039, 1064, ?, 1194
10, 20, 60, 300, ?, 23100
44 45 41 50 ? 59 23
...18, 21, 45, 138, 555, ?
