0.8 * 45 = 36
0.75 * 36 = 27
27 * (2/3) = 18
a candle was 45 cm long .It was lit and 20% burned off .The candle went out.The next day it was lit again ,and 25% of the remaining candle burned out .then it went out On the third day the candle was lit 1/3 of the remaining amount burned off .then it went out .how long was the candle after the third day
1 answer
1 answer