There are some coloured pins in a bag. The pins can be green, yellow, purple or grey.
A pin is going to be taken at random from the bag.
The table shows the probabilities of picking a purple or grey pin.
Colour Green | Yellow Purple Grey
Probability
0.35 0.25
The probability of picking a green pin is three times the probability of picking a
yellow one.
a) Complete the table. (2)
+
There are 14 purple pins in the bag.
b) Work out how many green pins are in the bag.