What is 18 times greater than 15?

18 times greater than 15 seems easy enough, but is it?

Let's assume the answer = 270 (since 18 x 15 = 270). Then shouldn't this statement be true?:

270 is greater than 18 x 15.

But that is not true. 270 is not greater than 18 x 15. It is the same!

To make it greater, we could make make a formula like (a+1)b where a=18 and b=15 to get this answer:

(18 + 1) x 15 = 285

But if that is the case, why not simply say "What is 19 times 15?" 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 18 times greater than 15, they mean 18 times as much as 15 which equals 270. We recommend that you ask them to clarify what they mean.

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