In the following number series, a wrong number is given. Find out that wrong number. 16 19 21 30 46 71 107 (a) 19 (b) 21 (c) 30 (d) 46 (e) 71
Answered Feb 05, 2023
(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 = 71 71 + 62 = 107 Clearly, 19 should replaced by 17
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.
(d) The series is based on the following pattern: 2 × 3 + 5 = 11 11 × 4 – 6 = 38 38 × 5 + 7 = 197 197 × 6 –...
(d) The series is based on the following pattern : 7 + 9 = 16 9 + 16 = 25 16 + 25 = 41 25 + 41 = 66; 68 41 + 66 =...
(c) The series is based on the following pattern 4 × .5 = 2 2 × 1.5 = 3 ; not 3.5 3 × 2.5 = 7.5 7.5 × 3.5 = 26.25 26.25 × 4.5...
(b) The series is based on the following pattern: 16 × 0.25 = 4 4 × 0.50 = 2 2 × 0.75 = 1.5 1.5 × 1.00 = 1.5 ; not 1.75 1.5 × 1.25...
(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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