The ratio of cats to dogs to birds to fish is 3:4:5:6. There are no other types of animals in the pet store. which of the following cannot be the total number of animals in the store?  Select the correct option:	A) 36	B) 54	C) 72	D) 90	E) 101
The parts add up to 3 + 4 + 5 + 6= 
<gadget id="calculator">3 + 4 + 5 + 6</gadget>
<output>18</output>
18, so we know that any possible number of total answers must be a multiple of 18. All five answer choices are multiples of 18:   (A) 36= 18*2   (B) 54 = 18*3   (C) 72 = 18*4   (D) 90 = 18*5   (101) 101 = not a multiple of 18   ans is 101
<result>E</result>
The ratio of cats to dogs to birds to fish is 3:4:5:6. There are no other types of animals in the pet store. which of the following cannot be the total number of animals in the store?