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i)
3!+1+3+13+7=30 [ If
we solve by factorial method]

**ii) 3!+3!+3!+3!+3!=30****[3!=3×2×1=6]****[without factorial method]****Odd nos added for odd nos. of time will always give an ODD NUMBER.****Odd nos added for even no of time will give an EVEN NUMBER.**
We can write this
3!+3+3+3+3+3+3+3+3=30
where 3!=3*2*1=6