Question
In each of the following number series, one term is
wrong. Find the wrong term. 2, 6, 18, 54, 150, 486, 1458Solution
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).
Find the wrong number in the given number series.
630, 180, 60, 24, 12, 8, 5Find the wrong number in the given number series.
1600, 800, 1200, 400, 100 , 12.5
- Find the wrong number in the given number series.
600, 539, 488, 447, 408, 395 Find the wrong number in given number series.
3230, 3198, 3090, 2083, 2334, 1430.
Find the wrong number in the given number series.
740, 725, 680, 605, 595
120, 136, 111, 147, 93, 162, 81
6, 22, 76, 314, 1580, 9600
Find the wrong number in the given number series.
9, 10, 65, 27, 217, 5030, 42, 48, 54, 65, 81, 126
Find the wrong number in the given number series.
8, 16, 24, 32, 32, 64
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