-------------------------------------------------------------------------

7-21)   de Fish Dine ordered tomato sauce. de Fish Dine uses 90 kilograms of tomato sauce a day to make their famous dish. After 5 days, there was 2/5 of the sauce was left. How much tomato sauce did de Fish Dine order in the beginning?

7-22)   The following sequence of operations is done on a number.  Multiply by 5, add 2, subtract 10, multiply by 2.  The final result is 44. What is the original number?

7-23)   The following sequence of operations is done on a number.  Multiply by 8, add 6, subtract 9, divide by 3.  The final result is 23. What is the original number?

7-24)   Tim's shoe store just stocked 104 pairs of new shoes. The ratio of black shoes and brown shoes is 5 to 3. How many pairs of black shoes and brown shoes did the store stock?

7-25) Washington Junior High School has 270 students. The ratio of female and male students is 5 to 4.  How many female and male students are there?

More challenging math problems for seventh grade:
1-5   6-10   11-15   16-20   21-25   26-30   31-35  36-40  41-45  46-50   51-60
61-70
71-80  81-90