There's no strict rule, either is acceptable.
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There's no strict rule, either is acceptable.
"Write down the age of everyone here"
"Write down the ages of everyone here"
Equivalent, and both equally fine.
When we are talking about a group of two or more people either singular or plural work, and singular doesn't imply they have to be the same either.
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There's no strict rule, either is acceptable.
"Write down the age of everyone here"
"Write down the ages of everyone here"
Equivalent, and both equally fine.
When we are talking about a group of two or more people either singular or plural work, and singular doesn't imply they have to be the same either.
Age is correct here because if you ask your parents what ages they started dating you are asking at what age they first went on dates. If you ask them what age they started dating, you are asking what age they started dating each other.