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Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
503, 509, 521, 539, ?

Option 1: 576

Option 2: 545

Option 3: 563

Option 4: 535


Team Careers360 22nd Jan, 2024
Answer (1)
Team Careers360 23rd Jan, 2024

Correct Answer: 563


Solution : Given:
503, 509, 521, 539, ?

Add the multiples of 6 to the previous number to obtain the next number of the series –
503 + 6 = 509, 509 + 12 = 521, 521 + 18 = 539, 539 + 24 = 563

So, the missing number is 563. Hence, the third option is correct.

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