Question

0. There are two candles of equal lengths and of different thickness. The thicker
one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh
lights the two candles at the same time. When he went to bed he saw the thicker
one is twice the length of the thinner one. How long ago did Ramesh light the
two candles

Answer 1

3 Hours ago!

Answer 2

Because after 3 hour, the thin candle is done 75% the thick candle is done 50%.
So what remains is:
Thin - 25%
Thick - 50%
50% = 2*25% which means thick is twice longer than thin

Answer 3

ok