Test 4 Section 6 - #6 (page 594)

This one works kinda like a ratio problem. The key is to recognize that if the ratio of white eggs to brown eggs is 2 to 3, then the ratio of, say, white eggs to TOTAL eggs is 2 to 5. (You could also, of course, do brown eggs to TOTAL eggs 3 to 5. Potayto potahto.)

The total number of eggs in the basket has to be a multiple of 5. The only answer choice that isn't is (B) 12, so that's the answer.