The average of 5 positive integers is 528. The average of the first two numbers is 408 and the average of last two numbers is 554. What is the third number?

Answer & Explanation

Option: [C]

Let the third number be x,

According to the question,

(408 * 2 + x + 554 * 2)/5 = 528

408 * 2 + x + 554 * 2 = 2640

x = 954