Concept: The question tests on the application in Number Properties
Solution:
A zero is the result of the product of a 5 and a 0.
In the question above, all the 5's come from the multiples of 5, like 5, 10, 15, 20 and so on . The 2's come from even numbers. We need to count only the fives as there are more 2's than 5's.
5^5 contributes 5 zeroes
10^10 contributes 10 zeroes
15^15 contributes 15 zeroes
20^20 contributes 20 zeroes
25^25=(52)^25=5^50 contributes 50 zeroes
So all the numbers where we have squares of 5 will give us the double number of zeroes. These numbers are 25, 50, 75 and 100...All other multiples will give us the same number of zeroes as the number itself.
So we have 5 + 10 + 15 + 20 + 50 + 30 + 35 + 40 + 45 + 100 + 55 + 60 + 65 + 70 + 150 + 80 + 85 + 90 + 95 + 200 = 1300
Option A