There are 400 tigers at a large zoo. The number of tigers is 5 times the number of all the other animals combined. How many more tigers are there than non tigers animals at the zoo?
Choices
A) 400	B) 390	C) 370	D) 320	E) 90
Answer is B.   Total tigers= 400 = 5 * Other Animals (X)   or X = 80.   So, 320ifference in tigers and X = 400-80= 
<gadget id="calculator">400-80</gadget>
<output>320</output>
320.
<result>D</result>
There are 400 tigers at a large zoo. The number of tigers is 5 times the number of all the other animals combined. How many more tigers are there than non tigers animals at the zoo?