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Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
25, 15, ?, −5, −15

Option 1: 20

Option 2: 5

Option 3: 10

Option 4: -1


Team Careers360 3rd Jan, 2024
Answer (1)
Team Careers360 5th Jan, 2024

Correct Answer: 5


Solution : Given:
25, 15, ?, −5, −15

Subtract 10 from the previous term to obtain the next term in the given series
25 − 10 = 15; 15 − 10 = 5, 5 − 10 = −5, −5 − 10 = −15

So, 5 is the missing term in the series. Hence, the second option is correct.

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