Three numbers are in the ratio 5 : 6 : 8. The sum of its longest and smallest numbers equals the sum of the third number and 49. Find the third number?  Pick:  A) A)54  B) B)75  C) C)48  D) D)42  E) E)63
Let the numbers be 5x, 6x, 8x.   Largest number = 8x.   Smallest number = 5x.   Third number = 6x.   8x + 5x = 6x + 49   7x = 49 =&gt;x=7   6x=42=&gt; third number is 42.   Answer:42
<result>D</result>
Three numbers are in the ratio 5 : 6 : 8. The sum of its longest and smallest numbers equals the sum of the third number and 49. Find the third number?