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Question : Directions: Select the option that will replace the question mark (?) in the given series.
45, 35, 27, 21, 17, ?

Option 1: 14

Option 2: 13

Option 3: 15

Option 4: 16


Team Careers360 1st Jan, 2024
Answer (1)
Team Careers360 20th Jan, 2024

Correct Answer: 15


Solution : Given:
45, 35, 27, 21, 17, ?

Subtract the even numbers in descending order starting from 10.
45 – 10 = 35; 35 – 8 = 27; 27 – 6 = 21; 21 – 4 = 17; 17 – 2 = 15

So, 15 is the missing number of the series. Hence, the third option is correct.

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