Candles

Before Christmas, Eva bought two cylindrical candles - red and green. Red was 1 cm longer than green. She lit a red candle on Christmas Day at 5:30 p. M. , lit a green candle at 7:00 p. M. , and left them both on fire until they burned. At 9:30 p. M. , both candles were the same height. Green finished at 23:00, red at 23:30.

How tall was the red candle when it was new?

Correct answer:

c =  15 cm

Step-by-step explanation:




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