Question : Directions: What should come in place of the question mark (?) in the given series? 3, 10, 39, ?, 885, 5346, 37471
Option 1: 56
Option 2: 45
Option 3: 720
Option 4: 172
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Correct Answer: 172
Solution : Given: 3, 10, 39, ?, 885, 5346, 37471
Multiply and add the square of the number (starting from 2), to the given numbers, to obtain the next numbers of the given series. 3→(3 × 2) + (2)2 = 6 + 4 = 10 10→(10 × 3) + (3)2 = 30 + 9 = 39 39→(39 × 4) + (4)2 = 156 + 16 = 172 172→(172 × 5) + (5)2 = 860 + 25 = 885 885→(885 × 6) + (6)2 = 5310 + 36 = 5346 5346→(5346 × 7) + (7)2 = 37422 + 49 = 37471
So, 172 is the required number of the given series. Hence, the fourth option is correct.
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Question : Directions: What should come in place of ? in the given series? 38, 39, 41, 44, 48, ?
Option 2: 53
Option 3: 51
Option 4: 55
Question : Directions: What should come in place of (?) in the given series? 33, 35, 39, 41, 45, ?
Option 1: 47
Option 2: 49
Option 4: 48
Question : Directions: What should come in place of (?) in the given series? 28, 31, 36, 39, 44, ?
Option 1: 49
Option 2: 51
Option 3: 48
Option 4: 47
Question : Directions: What should come in place of (?) in the given series? 3, 6, 11, 18, 27, ?
Option 1: 39
Option 2: 36
Option 3: 42
Option 4: 38
Question : Directions: What should come in place of the question mark (?) in the given series? 9, 14, ?, 24, 29, 34
Option 1: 18
Option 2: 19
Option 3: 21
Option 4: 20
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