Which of the following can be used to find 150/6?

I can't see anything following but 150/6 is 25.

 Thermometer with black bulb, because black reflects less heat than white



You might have been told not to wear black in the summer because it gets hot or maybe that being in a darker colored car in the summer is worst than being in a lighter colored car because it gets hotter faster.

This is because black absorbs more heat (which is the same as reflecting less heat) than lighter colors, like white! We see black because it absorbs the wavelengths of the visible light spectrum and that energy turns into heat. We see white because the wavelengths are being reflected.