ISRO 2007- ECE Probability

Question

A bag contains eight white and six red marbles. The probability of drawing two marbles of same colour is

a) $8c_2$ .$6c_2$ / $14c_2$  

b) $8c_2$ /$14c_2$ + $6c_2$ /$14c_2$

c) $8c_2$ .$6c_2$ /$14c_2$.$14c_2$

d)$8c_2$​​​​​​​ /$14c_2$​​​​​​​​​​​​​​ + $6c_2$​​​​​​​ /$12c_2$

Answer 1

b) 8c₂ /14c₂ + 6c₂ /14c₂

Comments

@debashish which software u are using to draw pic??

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http://ngwin.com/picpick

Answer 2

Option B) is correct answer.