Select the number from among the given options that can replace the question mark (?) in the following series. 10, 22, 42, 86, 170, 340, ?
Select the number from among the given options that can replace the question mark (?) in the following series. 10, 22, 42, 86, 170, 340, ?
QuestionSelect the number from among the given options that can replace the question mark (?) in the following series. 10, 22, 42, 86, 170, 340, ?
Typemultiple_choice
Option743incorrect
Option631incorrect
Option634incorrect
Option678correct
Solution10 × 2 + 2 = 22
22 × 2 – 2 = 42
42 × 2 + 2 = 86
86 × 2 – 2 = 170
170 × 2 + 2 = 340
340 × 2 – 2 = 678
10, 22, 42, 86, 170, 340, 678.
ssc reasoning
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