# Related Rates Problem

Calculus Level 3

Two cars, one going due south at the rate of $$30\text{ km/hr}$$ and the other going due east at the rate of $$45\text{ km/hr}$$, are travelling toward the intersection of two roads.

In $$\text{kph}$$, at what rate are the cars approaching each other at the instant when the first car is $$0.2\text{ km}$$ and the second car is $$0.15\text{ km}$$ from the intersection?

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