Answer: The restaurant can make 199 pancakes in two hours.
Explanation:
Given: Total number of cups of pancake mix used in 1 hour = 124
Mix required for each pancake =

Number of cups of pancake mix used in 2 hours = 2 x 124 = 248
Number of pancakes made = (Number of cups of pancake mix used in 2 hours ) ÷ (Mix required for each pancake )

Hence, the restaurant can make 199 pancakes in two hours.