Two candles of the same length but different thickness are
lighted simultaneously. The thicker candle is supposed to
burn for six hours while the thinner one is to last for two
hours less. How many hours after they are lighted, the
thicker candle will be double the length of the other one ?
(a) 1 hour
(b) 2 hours
(c) 3 hours
(d) 4 hours
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Answer / libin lal vinu
(c) 3 hours
thick candle 1/6 th in every hour
thinner candle 1/4 th in every hour
after 3 hrs
thicker (1/6)*3= 1/2 the length , remaining half
thinner (1/4)*3=3/4 th lenth ,remaining 1/4th which is half
of thicker one
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