There are some sweets in a jar
The sweets are red or orange or blue or yellow.
Hannah is going to take at random a counter from the bag.
The table shows cach of the probabilities that the counter will be blue or will be yellow.
Colour
Probability
red
orange
blue
0.5
yellow
0.2
There are 20 blue sweets in the jar.
The probability that the sweet Hannah takes will be red is twice the probability that the
sweet will be orange.
(a) Work out the number of red sweets in the jar.
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