A long steel bar is to be cut in a ratio 2:3:5. If the middle number is 12, how long is the steel bar?

Question

Please I need to find the solution

Answer 1

There are ten parts (2+3+5) and so the middle number represents 3/10 of x if whole length of steel bar is 12 units.

0.3x = 12

x=12/0.3 = 120/3 =40 units of length.