Question 5
There are four cards numbered 5, 6, 7, 8, one of each. Bình takes two cards and Châu takes the other two.
• Bình makes both two-digit numbers from his cards (for example, 57 and 75).
• He adds the two numbers (for example, $57+75=132$).
• Châu does the same with her cards.
• Châu’s sum is 44 greater than Bình’s sum.
What is Bình’s sum?
• Bình makes both two-digit numbers from his cards (for example, 57 and 75).
• He adds the two numbers (for example, $57+75=132$).
• Châu does the same with her cards.
• Châu’s sum is 44 greater than Bình’s sum.
What is Bình’s sum?