Unit 1 · Calendar and Date Counting

Amy's Dog-Sitting Pay — August to September

Lesson 3 of 3

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About this lesson

Now let's tackle a considerably more demanding variant — one that combines counting working sessions across two calendar months, applying different pay rates to different day types, and correctly handling a single day that must be excluded.

Chapters

0:00Introduction
0:21The Question
1:08Strategy
1:43Step 1: Set the date range and birthday exception
2:17Step 2: Count Tuesdays, Thursdays, and Saturdays
3:09Step 3: Multiply and pick the total
3:58Correct answer

Question

Amy works as a dog sitter from Tuesday 5 August to Tuesday 30 September (inclusive).

She dog sits on Tuesdays, Thursdays, and Saturdays each week.

  • She earns $50 for each Tuesday or Thursday session.
  • She earns $70 for each Saturday session.

However, the first Thursday of September is Amy's birthday, so she does not work on that day.

How much money does Amy earn in total?

How much money does Amy earn in total?

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