a rope was cut in 7 equal pieces of 1/2 a piece measures 3 inch. how many inch was the rope before it was cut

21 inch

Betty did 5 exercises in one hour.what fraction of an hour did betty complete one exercises?

To find the length of the original rope before it was cut, we can use the information given in the problem.

Given that 1/2 a piece measures 3 inches, we can determine the length of one piece by multiplying 3 inches by 2.

1 piece = 2 * 3 inches = 6 inches

Since the rope was cut into 7 equal pieces, we can find the length of the original rope by multiplying the length of one piece by 7:

Original rope length = 6 inches * 7 = 42 inches

Therefore, the original length of the rope was 42 inches.