If 9 cards cost 25p how much will 36 cards cost?

Oh, dude, let me grab my calculator... just kidding, who needs that? So, if 9 cards cost 25p, that means each card costs about 2.78p (25 divided by 9). Now, if you want 36 cards, just multiply 2.78p by 36 and you get around 100p. So, 36 cards would cost approximately 1 pound. Easy peasy, lemon squeezy!