A lamp can stay lif up to 5 hours when 500 mL of kerosene is loaded in it.
How long will it keep burning if there’s only 125 mL left?
Answer:

If 500 mL of kerosene allows the lamp to burn for 5 hours, we can figure out the burn time per mL. That’s 5 hours divided by 500 mL, which gives us 0.01 hours per mL. So for 125 mL of kerosene, we multiply 0.01 hours by 125 mL. This results in 1.25 hours. Therefore, the lamp will keep burning for 1 hour and 15 minutes with the remaining kerosene.

To put this into perspective, think about how many cozy evenings you could have with that 1 hour and 15 minutes of soft, glowing light. You could dive into a good book or simply unwind and savor those moments—the perfect backdrop for a peaceful night in!