Question
In each of the following number series, one term is wrong. Find the wrong term. 2, 6, 18, 54, 150, 486, 1458
Solution
Check ratio (multiplication pattern): 6 ÷ 2 = 3 18 ÷ 6 = 3 54 ÷ 18 = 3 150 ÷ 54 ≈ 2.78 (not 3) 486 ÷ 150 ≈ 3.24 (not 3) 1458 ÷ 486 = 3 Clearly, the intended pattern is multiplication by 3 each time: Correct series: 2, 6, 18, 54, 162, 486, 1458 So the term which breaks the pattern is 150 (it should have been 162).
More Wrong Series Questions
- 20, 95, 220, 275, 620, 895
- In each of the following number series, one term is wrong. Find the wrong term. 4, 10, 22, 46, 94, 188
- In each of the following, one term is wrong. Find the WRONG term. 2, 6, 18, 54, 108, 486
- Find the wrong number in the given number series. 5, 14, -2, 23, -13, 42
- Find the wrong number in the given number series. 26, 38, 60, 110, 206, 398
- A-5,  A,  35,  52, 78, 115
- Find the wrong number in the given number series. 37, 41, 67, 93, 157, 257
- 32, 16, 24, 60, 207, 945
- 9, 10, 12, 18, 42, 160
- 127, 137, 148, 164, 169, 185, 199
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