Answered

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A 22inch candle burns at a constant rate of 1.2 inches per hour. At what hour will the candle be fully burned ?

Sagot :

To determine the time taken

[tex]\begin{gathered} \text{speed = }\frac{dis\tan ce\text{ }}{time\text{ taken }} \\ \text{distance covered = 22 inches} \\ \text{speed = 1.2 inches per hour} \\ \text{make time the subject } \end{gathered}[/tex][tex]\begin{gathered} \text{time taken = }\frac{dis\tan ce\text{ }}{speed} \\ \text{time taken = }\frac{22\text{ inches}}{1.2\text{ inches per hour}} \\ \text{time taken = 18.33 hours} \end{gathered}[/tex]

Hence the hour needed for the burning of the candle fully = 18.33 hours

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