Multiple choice

Directions: In the following numbers, one number is incorrect. Find the odd number.

  1. 8540

  2. 6740

  3. 5420

  4. 3412

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Options A, B, and C are all divisible by 20 (ending in 20 or 40): 8540÷20=427, 6740÷20=337, 5420÷20=271. Option D (3412) is odd because it is not divisible by 20 - 3412÷20=170.6, and it doesn't follow the same divisibility pattern.