Which of the following is a rational number between 5 and 8?

A- square root 28

B- square root 36

C- square root 40

D- square root 80

1 answer

The rational number between 5 and 8 can be found by taking the average of the two numbers.

Average of 5 and 8 = (5+8)/2 = 13/2 = 6.5

None of the given options (square roots) are equal to 6.5, so there is no rational number between 5 and 8 in the given options.