Sponsored Ad

Thursday, April 8, 2010

Candle Puzzle Interview Question

 

Ques: Suppose you have two candles, One candle takes 90 minute to burn completely? How will you measure 135 minutes using these two candles?

Ans: burn one candle completely and then burn another candle from both sides.

90 + 90/2 = 135 minutes

2 comments:

  1. This answer assumes that a candle will burn at the same rate on its side as it will when upright. That is a foolish assumption to make. It would be better to phrase the question as a couple of "ropes" instead of "candles" because then the answer won't be making that assumption.

    ReplyDelete
  2. You are right, but candle question is also very popular in interview.

    ReplyDelete

Sponsored Ad

Followers

Follow Us