9

Set 3: Percentages (Advanced)

Explanation

Answer: A

PROBLEM

A meal costs $70. If you add a 10% tip, what is the total?

A meal costs $70. If you add a 10% tip, what is the total?

A.

77

✓ Correct
B.

154

C.

82

D.

72

Detailed Explanation

Choice A is the best answer. Tip = 10% of 70 = 7. Total = 70 + 7 = $77

Why others are wrong:
B: 154 is incorrect because it does not satisfy the equation.
C: 82 is incorrect because it does not satisfy the equation.
D: 72 is incorrect because it does not satisfy the equation.