7, 19, 11, 19, 15, 15, 19, 11

7

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13

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17

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23

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Solution

The correct option is C $23$
The given series is a combination of two series:
$(i) 7, 11, 15, 19$ and
$(i i) 19, 19, 15, 11$
Terms of first series are in order whereas in (ii) the term $19$ is wrong which must be replaced by $23$

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Similar questions

1 + 3 + 5 + 7 + 9

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

1 + 3 + 5 + 7 + 9

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

Without adding find the sum

(i) 1 + 3 + 5 + 7 + 9

(ii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19

(iii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

\frac{7}{11} : \frac{13}{17} : : \frac{19}{23} : (?)

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