Andy and Bob went to the canteen to buy snacks. They spent the same amount. Andy bought a can of soda at $1 and two hamburgers at $2 each. Bob ordered two sandwiches for $3 and a can of fruit drink. How much did Bob's fruit drink cost? Give me reasons, before answering the question
Two hamburger cost 2 x $2 = $4. So, Andy spent $1 + $4 = $5. Therefore, Bob's fruit drink cost $5 - $3 = $2. So the final answer is 2.