Mastering Subtraction & Geometric Sequences in Math

A farmer has 100 apples. Each week, he sells 10 apples. How many apples will he have left after 4 weeks?

• 60

• 50

• 80

• 70

In a geometric sequence, the first term is 3 and each term is multiplied by 2. What is the 4th term of this sequence?

• 18

• 24

• 36

• 12

A library has 500 books. Each month, 15 books are donated. How many books will the library have after 6 months?

• 590

• 550

• 600

• 575

A car's value decreases by 20% each year. If the car is worth $10,000 now, what will its value be after 2 years?

• $7,200

• $5,000

• $6,400

• $8,000

A pattern of tiles is laid out in a geometric sequence where the first tile is 1 square foot and each subsequent tile is double the size of the previous one. What is the area of the 5th tile?

• 16 square feet

• 32 square feet

• 8 square feet

• 4 square feet

A baker starts with 200 cookies and sells 25 cookies each day. How many cookies will he have left after 5 days?

• 100

• 125

• 75

• 50

In a geometric sequence, the first term is 5 and the common ratio is 3. What is the 3rd term of this sequence?

• 60

• 45

• 15

• 30

A gardener plants 120 flowers and removes 10 flowers each week. How many flowers will be left after 8 weeks?

• 30

• 40

• 50

• 70

A company’s profit is $1,000 in the first year and increases by 50% each year. What will the profit be in the 3rd year?

• $3,000

• $1,500

• $2,250

• $1,750

A sequence starts at 200 and decreases by 30 each step. What will be the value after 5 steps?

• 100

• 70

• 20

• 50