The average of squares of five consecutive even natural numbers is 792. What is the ratio of smallest number to largest number?
The sum of three consecutive odd numbers and 3 consecutive even numbers together is 165. The smallest odd number is 9 less than smallest number. What is the sum of the largest odd number and the largest even numbers?
Saurabh was asked to find the average of first 'n' natural numbers. By mistake, he added a number twice but he didn't noticed it. As a result, he obtained a wrong average of 31.3. Find the number he added twice?
