Step-by-Step Solution
Let:
Bowl of chips = A
Group of 3 cookies = B
Step 1
From the first equation:
+ + = 30
3A = 30
A = 10
Step 2
From the second equation:
+ + = 20
10 + B + B = 20
2B = 10
B = 5
Step 3
Check the third equation:
− = 5
5 − 10 = −5, not 5.
This means the third equation is inconsistent with the values obtained from the first two equations. In other words, the puzzle contains an error.
Step 4
Using the values from the first two equations, solve the final expression:
+ ×
According to the order of operations, perform multiplication first:
= 10 + (5 × 10)
= 10 + 50
= 60
Final Answer: 60
Note: The third equation contradicts the first two, so the only logically consistent answer based on the given values is 60.
