A string is cut in half and one half is used to bundle newspapers. Then one
fifth of the remaining string is cut off and used to tie a balloon. The piece left is
2 meter long. How long was the string originally?
PLEASE ANSWER ONLY IF YOU KNOW THE ANSWER
Answers
Answer:
the string was 4.8 meter long.
Answer:
a piece of string is cut in half, so that one half can be used to tie newspapers, one third of the remaining string is cut off to tie a parcel. the leftover string is 2m long. how long was the whole string
String is x meters long.
The string is cut in 1/2 so now we have 2 halves, each half is (1/2)*x or x/2.
We take 1/5 of the x/2 piece to tie a parcel. How much is left? That will be
(1/2)(x)-(1/5)(x/2) and that piece is 2 m.
Solve for x.
Multiply through by 10.
5x-x=10
4x = 12
x = 3
Check:
String is 10 meters long.
We cut half of it leaving 5 meters.
5 meters used to tie newspaper.
The 5 meter piece that's left is cut to remove 1/5 of that. 1/5*5 = 1 meter used to tie a parcel. That leaves 2 meters for the part left over and that's what the problem says.