1."There's a red scarf in the window," said Jill. "I'd like two or three for presents, but do you have it in any other colour?" "Of course. Green and blue, but at different prices," the girl replied. "A red and blue would be £20 more than a green, a red and a green £30 more than a blue, and a blue and a green £40 more than a red." What were the respective prices?

Red £30, green £42, blue £28

Red £20, green £25, blue £34

Red £25, green £35, blue £30