This is from Section 1 Question 5
5. At a certain diner, a hamburger and coleslaw cost $3.59, and a hamburger and french fries cost $4.40. If french fries cost twice as much as coleslaw, how much do french fries cost?
The answer is in the answer sheet is (E). I tried back solving and the only answer that came was close to matching the description was E.
But when i assigned variables such as X (hamburger) Y (Coleslaw) and Z (French Fries) I got the following Equations:
X + Y = 3.59
X + Z = 4.40
Z = 2Y (FRENCH FRIES twice as expensive as COLESLAW)
Solving the above equations i get Y = 0.81 and Z = 1.62, and 1.62 is not even in the options for the cost of french fries..
I dont know know if i have done something wrong in forming the equations. Could someone guide me plzz.