GMAT Data Sufficiency (DS) | Re: Pam owns an inventory of unopened packages of corn and rice

Here's my simple solution. Since 17 & 13 are both primes (always look out for prime numbers), we can use prime factorization.

282 - divide by 2 -> 141 divide by 3--> 47 (which breaks into 17 *2 + 13(1))

So (17(2)+13(1) * 6) = $282.... there's only one way to get to $282. 17*12 + 13*6. other methods won't work so sufficient.

Should be out of this question in 60 seconds if you're quick.

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