Latest other Aptitude Question SOLUTION: find number of zeroes at end of 1!*2!*3!*.........*30!

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(#M40039631) OTHER Numerical Ability question solve Keep an EYE

find number of zeroes at end of 1!*2!*3!*.........*30!

Asked In other Harsh Poddar (9 years ago)

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Narasapu Hari prasad  (9 years ago)

Ans is 87 zeros
for 5! to 9! One zero for each
1+1+1+1+1=5
from 10! To 14 fact two zeros
2+2+2+2+2=10
for 15 to 19 fact three zeros
3+3+3+3+3=15
from 20 fact to 24 fact 4 zeros each 4*5=20
from 25 to 29 fact 6 zeros
6*5=30
for 30 fact there are 7 zeros
so total zeros=5+10+15+20+30+7=87 zeros

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