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The ten's digit of 1!+2!+3!+ . . .+97! i...

The ten's digit of `1!+2!+3!+ . . .+97!` is

Text Solution

Verified by Experts

The correct Answer is:
1
For `n ge 10`, the number of zeros in `n! ge2`
`therefore1!+2!+31+4!+ . . .+97!= . . 13`
`therefore`Ten's digit=1
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