Q. A number is divided by 84 and leaves remainder 37. If this number is divided by 12, then the remainder will be

Explanation:

Let the number be N = 84k + 37. Since 84 is divisible by 12, N ≡ 37 (mod 12). Now, 37 = 12×3 + 1, so the remainder when N is divided by 12 is 1. Hence, option 3.