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Total number of values of x, of the form...

Total number of values of `x,` of the form `1/n, n in N` in the interval `x in[1/25,1/10]` which satisfy the equation `{x} + {2x) + ......+ {12x}=78x` is `K.` then `K` is less than,(where { } represents fractional part function)

A

12

B

13

C

14

D

15

Text Solution

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The correct Answer is:
B
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