Question

One piece of pipe 21 meter long is to be cut into two pieces , with the length of pieces being in a 2 : 5 ratio . What are the length of the pieces ?

Answer 1

suppose 2x+5x=21
7x=21
x=3
so 6,15 answers

Answer 2

Answer:

6 , 15

Step-by-step explanation:

Given that ,

One piece of pipe = 21 meter

and cut into two pieces in the ratio = 2 : 5

Let the length of first piece = 2a

and the length of second piece = 5a

Then total Length of pipe = 2a + 5a

2a + 5a = 21

7a = 21

a = 3

so,

length of first piece = 2a = 2*3 = 6

and the length of second piece = 5a = 5*3 = 15