Three number are in the ratio 5:6:7. The sum of its largest and smallest numbers equals the sum of the third number and 48. Find the third number?  Choose the correct choice
A) 87  B) 57  C) 48  D) 26  E) 28
Let the numbers be 5x, 6x and 7x.   Largest number = 7x   Smallest number = 5x   Third number = 6x   7x + 5x = 6x + 48   6x = 48   Third number is: 48.   Answer: 48
<result>C</result>
Three number are in the ratio 5:6:7. The sum of its largest and smallest numbers equals the sum of the third number and 48. Find the third number?