TNPSC Question Paper-2013 Questions and answers

\( \large F \xrightarrow{\text{+5}} K\)

\( \large R \xrightarrow{\text{+5}} U \xrightarrow{\text{+5}} Z\)

\( \large E \xrightarrow{\text{+5}} J \xrightarrow{\text{+5}} O \xrightarrow{\text{+5}} T \)

If B = 1, \( 2171 \div 1 = 2171 \)

Which is a four digit number

If B = 6, \( 2176 \div 6 \) not a whole number

If B=5, \( 2175 \div 5 = 435 \)

So B = 5, A = 4

Number of total outcomes when a perfect die is thrown twice, n(S) = 36

Event of getting total of 9

A = {(3,6), (4,5), (5,4), (6,3)}

= > n(A) = 4

\( \large P(A) = \frac{n(A)}{n(S)} = \frac{4}{36} = \frac{1}{9} \)

Except 279 all the number are multiples of 11.