M04 #30

I'm not sure if I am allowed to post this here or reproduce the question here, but I wasn't sure where else to bring it up. I came across the following DS question on Test 4;

If Mary bought some kiwis, bananas, and lemons at the grocery store in proportion of 1 : 4 : 7 accordingly, how many lemons did Mary buy?

1)The total number of fruits Mary bought is 24.
2)Mary bought 8 bananas.

The given answer is D, each is sufficient. But I would like to take issues with (1). I believe is (1) is insufficient because it simply says the total number of fruit Mary bought is 24. While if we could conclude from the question that the only fruit that Mary bought were kiwis, bananas, and lemons, then (1) would definitely be sufficient to answer the question. But the question does not tell us these are the only fruit she purchased. Considering (1) Mary could have bought 2 kiwis, 8 bananas, and 14 lemons, or she could have bought 1 kiwi, 4 bananas, 7 lemons, and 12 other fruit. Without any further information we can not tell which is the case.

Could I get one of the moderators to look at this question and tell me if my train of thought is correct? I'm just wanting to make sure I get my $79 worth :wink:

Thanks,

Jared