We have a question: Edric's monthly salary is $576. If he works 8 hours a day for 6 days a week, how much is his hourly rate?
And an answer: 3
So how you got the answer?
In a week, Edric's salary is $576 / 4 = $144. In a day, Edric earns $144 / 6 = $24. Thus, his hourly rate is $24 / 8 = $3.

We have a question: The buyers who came to Mr. Brandon's shop yesterday bought goods worth $80. If 2/5 of the total amount of sales Mr. Brandon made yesterday were credit sales, and the rest were cash sales, how much did Mr. Brandon get from cash sales?
And an answer: 48
So how you got the answer?
2 / 5 of the total amount of sales Mr. Brandon made yesterday, which were credit purchases, were worth 2 / 5 * $80 = $32. The cash sales that Mr. Brandon made yesterday was $80 - $32 = $48.

We have a question: Mimi has decided to start going to the gym again. Over the weekend, she spent $8,000 on athletic sneakers and clothes. She spent thrice as much on Nike sneakers as she did on Adidas. What she spent on Adidas was 1/5 the cost of Skechers. If Mimi's Adidas sneakers purchase was $600, what amount did she spend on clothes?
And an answer: 2600
So how you got the answer?
The Adidas purchase was 1 / 5 that of Skechers, therefore the Skechers cost 5 * 600 = 3000 dollars. Spending three times the cost of Adidas on Nike sneakers translates to 3 * 600 = 1800 dollars. All together, the three athletic - sneaker purchases cost Mimi 600 + 1800 + 3000 = 5400 dollars. Subtracting the amount spent on athletic sneakers from the total spent gives 8000 - 5400 = 2600 dollars. Mimi therefore spent 2600 dollars on clothes.