explaination is this-The expression is: 51 × 27 × 35 × 62 × 75 (51 × 27 × 35 × 62 × 75) / 100 = (51 × 27 × 35 × 62 × 3) / 4 = (51 × 27 × 35 × 31 × 3) / 2 So, we need to find the remainder when 51 × 27 × 35 × 31 × 3 is divided by 2. The value of 51 × 27 × 35 × 31 × 3 must be an odd number, as it is a multiplication of all odd numbers. Hence, when it is divided by 2, we will get 1 as remainder. But we cancelled out 50 earlier. So, the remainder when 51 × 27 × 35 × 62 × 75 is divided by 100 = 1 × 50 = 50 Hence, the correct answer is option (a).
not able to understand why 50 is coming in end