select the next number in the series: 298 209 129 58 -4?
Select the next number in the series: 298, 209, 129, 58, -4.
What comes next? a) -13 b) -93 c) -66 d) -57
2 Answers
Dec 01, 2024
Take the differences....
298 - 209 = 89
209 - 129 = 80
129 - 58 = 71
58 - (-4) = 62
The differences drop by 9 each time. So, the next number is (-4) - x = 53, or x = -57. Answer is d.
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