PROBLEM: Burning Rope Timer Puzzle

Problem Description

A man has two ropes of varying thickness (Those two ropes are not identical, they aren’t the same density nor the same length nor the same width). Each rope burns in 60 minutes. He actually wants to measure 45 mins. How can he measure 45 mins using only these two ropes.
He can’t cut the one rope in half because the ropes are non-homogeneous and he can’t be sure how long it will burn.

P.S –  I want you to try solving them before checking the solution. Do share your logic & solutions in the comments. I’d love to see how uniquely can someone think!

2 thoughts on “PROBLEM: Burning Rope Timer Puzzle”

  1. It is very important puzzle and asked by many companies…
    Step 1: burn the first rope from both the side.
    Step 2 burn the second rope from one side.
    Step 3: once first rope completely burned then put the fire on other end of the second rope.
    This will calculate 45 minutes.

    30 min from first and steps + 15 minutes from 3rd

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