Question

1. Which no replace question mark?
5,7,11,13,17,?
a)23
b)9
c)19
d)31

Answer 1

Answer:

a) 23

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Answer 2

Answer:

Answer is option C:-19

VERIFICATION:-

HERE 1st TERM IS 5 AND SECOND TERM IS 7, ITS MEANS DIFFERENCE BETWEEN THIS TWO NUMBER IS 2

THEN THIRD TERM IS 11 AND SECOND TERM IS 7 ITS MEANS DIFFERENCE BETWEEN THIS TWO NUMBER IS 4

SAME THING IS APPLICABLE IN YOUR QUESTION MEANS FIRST WE HAVE TO ADD 2 TO PREVIOUS TERM AND THEN ADD 4 TO ANSWER

THEREFORE ANSWER IS 19