Lizzy: Lauren sent 65 pieces of mail on Monday, 10 more pieces of mail on Tuesday than on Monday, 5 fewer on Wednesday than on Tuesday, and 15 more pieces of mail on Thursday than on Wednesday. How many pieces of mail did Lauren send?.
Me: Hmmm, let me think. I think this is the detailed solution:
Lauren sent 65 + 10 = 75 pieces of mail on Tuesday. He sent 75 - 5 = 70 pieces of mail on Wednesday. And sent 70 + 15 = 85 pieces of mail on Thursday. Therefore, he sent 65 + 75 + 70 + 85 = 295 pieces of mail. Final answer: 295.