1.

A box containes 2 black and 2 white ball then probablity of selecting 2 balls of the same colour

Answer»

Total no. of BALLS= 4
total no. of same colour balls ( EITHER white or BLACK)= 2
therefore, probability of SELECTING 2 balls of the same colour =
\frac{total \: no. \: of \: same \: colour \: of \: balls}{total \: no. \: of \: balls}
= \frac{2}{4}
= \frac{1}{2}


Discussion

No Comment Found

Related InterviewSolutions