Question

the value of 10!/7!3! is
1)100 2)120 3)140 4)160
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Answer 1

The value of 10!/7!3! is 2)120.

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Answer 2

Answer:

We can write 10! as 10 x 9 x 8 x 7!

 also 3! can be written as 3 x 2 x 1

 

    >>> So while evaluating the expression { 10 x 9 x 8 x 7! }/ {7! x 3 x 2 x 1}

                             7! gets cancelled out and further on division we get,

                =>>120 is your required answer

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