Question

6. Rahul is a class X student, he love to play with marbles. He has a bag containing 10 blue, 7 white and 8 red marbles. He thought that, he will win game only when he draw white marble. Then what will be the probability that he will win the game. ​

Answer 1

This is correct answers. please mark me brainlist.

Answer 2

Given,

Blue marbles $\[ = 10\]$

White marbles $\[ = 7\]$

Red marbles $\[ = 8\]$

Solution,

Calculate the probability that Rahul will win the game.

Total marbles,

$\[\begin{array}{l} = 10 + 7 + 8\\ = 25\end{array}\]$

Rahul won the game if he draw only white marbles.

Probability of win,

$\[{\rm{ = }}\frac{{{\rm{favouable}}\,{\rm{marbles}}}}{{{\rm{total}}\,{\rm{marbles}}}}\]$

$\[{\rm{ = }}\frac{{\rm{7}}}{{{\rm{25}}}}\]$

Hence the probability of Rahul's win is $\[\frac{{\rm{7}}}{{{\rm{25}}}}\]$.