Use Your Knowledge of English: 

1. Analyze the Units of the Answer. How many dimensions?

If the sun is 93,000,000 miles from the Earth, how many minutes does it take for sunlight to reach the Earth? (Given: The velocity of light is 186,000 miles per second.)

Minutes are Time unit: a single (simple) dimension!

2. Is there a single dimension 'number and unit' not connected to a Unit Factor in the problem?

"93,000,000 miles" is also a single dimension
of length which can be connected to the Single Dimensional Answer unit of Time!

3. Equate the given to the unit asked for in the answer.

_???__minutes = 93,000,000 miles