There are only pink, yellow, green and blue counters in a bag,
The table shows the probability that a counter taken at random from the bag
will be pink, green or blue.
Colour
Pink
Yellow
Green
Blue
Probability
0.5
0.1
0.2
(a) Work out the probability that the counter taken is yellow
There are 40 counters in the bag,
(b) Work out the number of blue counters in the bag.
CORBETTMATHS
ok