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Which of the following numbers will replace the question mark (?) in the given series? 5, 6, 10, 12, 15, ?, 20, 24

A19

B18

C20

D21

Answer:

B. 18

Read Explanation:

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ശ്രേണി പൂർണമാക്കുക: 6,12,20,30,.....,56

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B_XT_ _HY_MB_Z _M

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What should come in place of ‘?’ in the given series? 105, 93, 78, 111, 91, 81, 117, 89, 84, ?