**Princeton Review**

If Mike buys a bicycle and a helmet for a total cost of $315, how much does the helmet cost?

1) The bicycle costs twice as much as the helmet

2) The bicycle costs $210

OA D

00:00

**A**

**B**

**C**

**D**

**E**

If Mike buys a bicycle and a helmet for a total cost of $315, how much does the helmet cost?

1) The bicycle costs twice as much as the helmet

2) The bicycle costs $210

OA D

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00:00

**A**

**B**

**C**

**D**

**E**

Let x = cost of helmet

So, 2x = cost of bicycle

Since the total cost is $315, we can write: x + 2x = 315

Simplify: 3x = 315

Solve: x = 315/3 = 105

So, the answer to the target question is the helmet costs $105

Since we can answer the target question with certainty, statement 1 is SUFFICIENT

Since we already know that bicycle + helmet = $315, we can conclude that the helmet costs $105

Since we can answer the target question with certainty, statement 2 is SUFFICIENT

Answer: D

Cheers,

Brent