Help with arithmetic question (from UKCAT QR section mock)

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Anthony M.K.
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How would one go about answering this question?

In a population, 8% can taste neither PTC or sodium benzoate, 74% can taste PTC and 60% can taste sodium benzoate. What percentage can taste exactly one of these two chemicals?

The answer is below, please explain your approach.

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50%

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3pointonefour
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Here's my solution. Ask if you don't understand anything
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Anthony M.K.
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(Original post by 3pointonefour)
Here's my solution. Ask if you don't understand anything
That's fantastic, thank you!
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