You are given two candles of equal size, which can burn 1 hour each. You have
to measure 90 minutes with these candles. (There is no scale or clock). Also u r
given a lighter.

• First light up the two ends of the 1st candle. When it will burn out light up one end of the second candle. (30+60=90)
• 13 years agoHelpfull: Yes(3) No(2)
• Both candle light up at the same time but in opposite face and should parallel to each other, when both candle light will be in same line (30 min) then turn off any one candle, so the lighting candle will burn next (30 min) after that light up half unburnt candle and it will also (30 min) long lasting. so total timing is 30+30+30=90 mint.
• 9 years agoHelpfull: Yes(3) No(1)
• as both candles are of same length ...we can break the 2nd candle from the center with the help of 1st candle...now when the 1st candle ..finishes lit the broken part of the second candle....when it finishes we get our 90 minutes...
• 13 years agoHelpfull: Yes(2) No(3)