In the following number series only one number is wrong. Find out the wrong number. 19 68 102 129 145 154 (a) 154 (b) 129 (c) 145 (d) 102 (e) None of these
Answered Feb 05, 2023
(d) The series is + (7)2, + (6)2, + (5)2, + (4)2, + (3)2 The wrong number is 102. It should be 68 + (6)2 = 104
The series is as follows + 5, +9, + 13, +17 ....difference of two consecutive terms (9 – 5 = 13 – 9 = 17 – 13) is 4. Hence, 35 is...
Third number is the sum of first two numbers Hence 27 is wrong number in the series. It should be 29.
(c) The sequence is × 2, × 4, × 6, × 8, × 10 5374 should be 5376
(e) The series is as follows × 0.5 + 0.5, × 1 + 1, × 1.5 + 1.5 ... Hence, 12 is wrong number in the seies, it should be 14
(d) The series is based on the following pattern: 2 × 3 + 5 = 11 11 × 4 – 6 = 38 38 × 5 + 7 = 197 197 × 6 –...
(a) The series is based on the following pattern : 16 + 12 = 17; not 19 17 + 22 = 21 21 + 32 = 30 30 + 42 = 46 46 + 52...
(c) The series is × 1 + 2, × 2 + 3, × 3 + 4, × 4 + 5, × 5 + 6 The wrong number is 18. It should be 6...
(e) The series is × 1.5 The wrong number is 366 It should be 243 × 1.5 = 364.5
(a) The series is × 6 + 42, × 5 + 30, × 4 + 20, × 3 + 12, × 2 + 6, The wrong number is 3674 It should be 1220...
(b) The series is (2)3, (3)3, (4)3, (5)3, (6)3, (7)3, The wrong number is 218 It should be (6)3 = 216
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