Question

13,19,27,39... find missing term​

Answer 1

Solution :-

→ 13, 19 , 27, 39, ?

checking difference we get,

→ 19 - 13 = 6

→ 27 - 19 = 8

→ 39 - 27 = 12

now, checking difference of difference we get,

→ 8 - 6 = 2

→ 12 - 8 = 4

so, next difference will be either (4 + 2) = 6 or 4 * 2 = 8 { As 2 * 2 = 4 . }

taking difference as 6 :-

→ 12 + 6 = 18

then,

→ 39 + 18 = 57 (Ans.)

taking difference as 8 :-

→ 12 + 8 = 20

then,

→ 39 + 20 = 59 (Ans.)

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