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⟩ What is the wrong number in the series-13,16,21,27,39,52,69?

here's d sol:27 shud hv bn 28 as d difference dat d nos.in

d series carry b/w dm is dat of a prime no.

16-13=3

21-16=5

28-21=7

39-28=11

52-39=13

69-52=17

thus,27 is d wrng no.

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