Direction: In each of the following questions a number series is given. A number is given after the series and then (a), (b), (c), (d) and (e) are given. According to the given series, you have to form a new series which begins with the given number, and then answer the question asked.
-
12 26 11 36 9 7 (a) (b) (c) (d) (e) Which of the following numbers will come in place of (c) ?
-
- 7
- 21
- 4
- 11
- None of these
Correct Option: B
The given series is in the below pattern ,
First series :-
First term = 12
Second term = First term × 2 + 2
⇒ Second term = 12 × 2 + 2 = 26
Third term = Second term ÷ 2 - 2
⇒ Third term = 26 ÷ 2 - 2 = 11
similarly , we can find the all others terms .
........... and so on.
Second series :-
First term = 7
Second term = First term × 2 + 2
⇒ Second term = 7 × 2 + 2 = 16
Third term = Second term ÷ 2 - 2
⇒ Third term = 16 ÷ 2 - 2 = 6
Fourth term = Third term × 3 + 3
⇒ Fourth term = 6 × 3 + 3 = 21
Hence , the place value of ( c ) is 21.
