Question

One piece of pipe 21 meters long is to be cut into two pieces, with the lengths of the pieces being in a 2 : 5 ratio. Find the lengths of the pieces.

Answer 1

Answer:

Step-by-step explanation:

Let the ratio be 2x : 5x.

Length of pipe = 21m

Hence, 2x + 5x = 21m

7x = 21m

x = 21 ÷ 7 = 3m

Therefore, length of first piece 2 × 3m = 6m. Length of second piece = 5 × 3m = 15m.