Question

Chinki has some ‘fraction bars'. The longest bar is the red one (R).

She has some purple bars (P) that are 3⁄4 of the length of the red one, some yellow bars (Y) that are 1⁄2 of the length of the red one and some green bars (G) that are 1⁄4 of the length of the red one. Chinki wants to arrange 2 or more different bars end to end to create a bar equal in length to the red bar. 3 DIFFERENT WAYS of doing it are shown:
(Note that GGY and YGG are two DIFFERENT arrangements.)
In all, how many different arrangements like these are possible?

Answer 1

• 7

Explanation:

Other ways are:

• GP, PG, GYG, GGGG

So in total there are:

• 3 (given) + 4 = 7 arrangements