What is 4 times greater than 21?

4 times greater than 21 seems easy enough, but is it?

Let's assume the answer = 84 (since 4 x 21 = 84). Then shouldn't this statement be true?:

84 is greater than 4 x 21.

But that is not true. 84 is not greater than 4 x 21. It is the same!

To make it greater, we could make make a formula like (a+1)b where a=4 and b=21 to get this answer:

(4 + 1) x 21 = 105

But if that is the case, why not simply say "What is 5 times 21?" instead of saying "times greater than?"

We do not think there is a correct answer, because the question can be misinterpreted.

It seems that when many people write 4 times greater than 21, they mean 4 times as much as 21 which equals 84. We recommend that you ask them to clarify what they mean.

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