A, B and C went on a trip, and A bought three bottles of coke.

Analysis: The average C takes out 5 yuan money, which means that the total cost is three times that of 5. A bought three bottles of coke, and B bought the same two bottles of coke, indicating that A paid 3/5 of the total cost and B paid 2/5 of the total cost.

Total coke: 3+2=5 (bottles)

Total cost: 5×3= 15 yuan.

All expenses paid by Party A: 15×(3÷5)=9 yuan.

9-5=4 (yuan)

A: It should be given to A 4 yuan. ..