Q. L spends total $6.00 for one kind of D and one kind of C. How many D did he buy?
(1) the price of 2D was $0.10 less than the price of 3C
(2) the average price of 1 D and 1 C was $0.35
Unfortunately, I don't have the resolution to the above problem, please opine.
Thanks,
M
