Question

There are three pieces of ribbon. Two of the pieces and half the third piece, laid end to end, make one metre. What is the length of a piece, in centimetres?​

Answer 1

Answer:

Let us asume that all the three pieces of ribbon are of same size and lenhth of one piece of ribbon is a

then as per inspection a+a+a/2 =1 metre

or, (2a+2a+a)/2=1

or 5a/2=1 or, 5a=2 , or a =2/5

length of

one piece is 2/5 metre =÷2/5)×100 cm=40 cm