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kevincan
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We can see from the last 3 digits that 17280 is divisible by 80.
17280 = 80*216
& 216 is the cube of 6
Now, it'll be easy to proceed

kevincan
What’s the nicest way to factorize 17280 ?
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i dont understand why cant we take sister age as 1?

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Borja has two older twin brothers and a younger sister. If the four siblings’ ages are all whole numbers and their product is 17,280, how many possibilities are there for Borja’s age?

A) 1
B) 2
C) 3
D) 4
E) More than 4
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How old would Borja be ?
abvoluptatum
i dont understand why cant we take sister age as 1?

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When we take sister's age as 1, Borja's age will become 30, which will be greater than the age of twins i.e. 24. It'll contradict the question, as it's given that age of twins is greater than Borja.
abvoluptatum
i dont understand why cant we take sister age as 1?


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