If the average of 53 consecutive even numbers is 1280. Find the difference between the smallest and the largest number.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 104.
Average = 1280
Count = 53 (odd number, so average is the middle number)
Middle number = 1280
There are 26 numbers before and 26 after
Smallest = 1280 - 26×2 = 1228
Largest = 1280 + 26×2 = 1332
Difference = 1332 - 1228 = 104