A few days ago, the second cup of taro milk tea 100 was half price. How much is it to buy a medium cup 13 and a large cup 16?

According to the information you provided, Chabaidao milk tea shop held an activity a few days ago, and the second cup of milk tea was half price. Single cup price 13 yuan, single cup price 16 yuan. If you buy two cups of milk tea with different specifications, the second cup is calculated at half price. The following is the calculation process:

-First cup, medium cup: 13 yuan.

-The second largest cup (half price): 16 yuan /2 = 8 yuan.

So the total price of two cups of milk tea is: 13 yuan +8 yuan = 2 1 yuan.

If you buy a medium cup and a large cup, the total cost is 2 1 yuan. Please note that prices may vary due to factors such as regional and store policies. The above calculation is only based on the information you provided.