(D) According to Sangeeta,the father's birthday is between $8^{th}$ and $13^{th}$ December,which means the possible dates are $9^{th}, 10^{th}, 11^{th

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(D) According to Sangeeta,the father's birthday is between $8^{th}$ and $13^{th}$ December,which means the possible dates are $9^{th}, 10^{th}, 11^{th}, 12^{th}$ December.According to Natasha,the father's birthday is between $9^{th}$ and $14^{th}$ December,which means the possible dates are $10^{th}, 11^{th}, 12^{th}, 13^{th}$ December.The common dates in both sets are $10^{th}, 11^{th}, 12^{th}$ December.Since there is no unique date identified,the data is inadequate to determine the exact birthday.

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Sangeeta remembers that her father's birthday was certainly after $8^{th}$ but before $13^{th}$ of December. Her sister Natasha remembers that their father's birthday was definitely after $9^{th}$ but before $14^{th}$ of December. On which date of December was their father's birthday?

A
$10^{th}$
B
$11^{th}$
C
$12^{th}$
D
Data inadequate

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Sangeeta remembers that her father's birthday was certainly after $8^{th}$ but before $13^{th}$ of December. Her sister Natasha remembers that their father's birthday was definitely after $9^{th}$ but before $14^{th}$ of December. On which date of December was their father's birthday?

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How many $8$'s are there in the following number series which are exactly divisible by their immediately preceding and also divisible by their immediately succeeding numbers?$8, 2, 4, 5, 1, 7, 2, 8, 4, 8, 4, 2, 2, 8, 2, 6, 9, 8, 4, 5, 4, 8, 3, 2, 8, 4, 3, 1, 8, 3$

In a row of girls, Shilpa is $8^{th}$ from the left and Reena is $17^{th}$ from the right. If they interchange their positions, Shilpa becomes $14^{th}$ from the left. How many girls are there in the row?

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