Question

There are 11 blue marbles and 9 red marbles in a paper bag . If you pull one marble without looking , what are the chances it will be red ?

Answer 1

outcomes favourable to event

total number of outcomes

=9

20

9÷20=0.45

Answer 2

$\large{\boxed{ \boxed{ \frak{ \blue {question}}}}}$

There are 11 blue marbles and 9 red marbles in a paper bag. If you pull one marble without looking, what are the chances it will be red?

$\large{\boxed{\boxed{ \frak{ \orange{answer}}}}}$

Total no. of balls in the bag = 11 + 9 = 20

no. of red balls = 9

$probability \: of \: getting \: red \: ball = \frac{9}{20}$

probabilityof getting red ball = 0.45

______________________________

converting the probability into percentage

chances of getting red ball = (9 /20)× 100%

chances of getting red ball = 45 %