Question

A 15 cm long candle is lit. It burns at the rate of 0.25 cm/min.
i) Write an equation to calculate the height, h, of the candle after t minutes.
ii)
What will be the height of the candle after it burns for 30 minutes? ​

Answer 1

Answer:

Time taken by a 25 cm long candle to burn = 46 minutes

Time taken by a 1 cm long candle to burn = 45 / 25 minutes

So the time taken by a 25 + 5 = 30 cm long candle to burn =

25

(45×30)

=54 minutes

Step-by-step explanation:

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