My Aunt and I Were Approaching the Same Intersection, She $\frac { 1 } { 10 }$

question 71

Multiple Choice

My aunt and I were approaching the same intersection, she from the south and I from the west. She was travelling at a steady speed of 20 mph, while I was approaching the intersection at 80 mph. At a certain instant in time, I was $\frac { 1 } { 10 }$ of a mile from the intersection, while she was $\frac { 1 } { 20 }$ of a mile from it. How fast were we approaching each other at that instant Round your answer to the nearest whole number.

• A)88 miles per hour
• B) 82 miles per hour
• C) 80 miles per hour
• D) 78 miles per hour
• E) 85 miles per hour

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