The postman delivered 239 letters in total over the three days.
How many letters did he deliver on the three days
From the question, we have the following parameters that can be used in our computation:
Wednesday = 68 letters.
On Monday, he delivered 25 more letters than Wednesday
So, we have
Monday = 68 + 25 = 93 letters
On Tuesday, he delivered 15 fewer letters than Monday
So, we have
Tuesday = 93 − 15 = 78 letters.
To find the total number of letters delivered over the three days, add up the letters for each day:
Total = Monday + Tuesday + Wednesday
Total = 93 + 78 + 68
Evaluate
Total = 239
Hence, the postman delivered 239 letters in total over the three days.
Question
A postman delivered 25 letters more on Monday than Wednesday. He delivered 15 fewer letters on Tuesday than Monday. He delivered 68 letters on Wednesday.
How many letters did he deliver on the three days