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The number of zeros at the end of the number obtained, by multiplying the numbers from 1 to 100 will be:
1. 16
2. 20
3. 24
4. 36

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Correct Answer - Option 3 : 24

Given :

The number of zeros at  the end of the number obtained, by multiplying the number from 1 to 100 will be:

Calculation :

For every 5 in unit place one zero is added so between 1 to 100 there are 10 nos like 5, 15, 25, ...., 95 which has 5 in unit place.

Similiarly for every no divisible by 10 one zero is added in the answer so between 1 to 100 11 zeros are added for 25, 50, 75 3 extra zeros are added 

so total no of zeros are 10 + 11 + 3 =24

∴ Total no. of zeros are  24 

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