The correct option is
B 57We know that the reciprocal of any number n is 1n. When we multiply a number by its reciprocal, we get 1 as the answer. For example: n×1n=1
Therefore, the reciprocal of the given fraction 75 is as follows:
175=57⎧⎪
⎪
⎪⎨⎪
⎪
⎪⎩∵11x=x1⎫⎪
⎪
⎪⎬⎪
⎪
⎪⎭
Hence, the reciprocal of 75 is 57.