Another version of the two doors problem

There are 2 doors in front of a person, one door leads to heaven and other to hell and he doesn't know which leads where. There is a guard standing in front of each door. One of the guards always says truth and other always lies and he doesn't know who is who. Both the guards also know nothing about each other. You are allowed to ask one question to one of the guards. What question will you ask to know which door leads to heaven?

Easy Math Editor

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Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

Can anyone give its solution.

Evan Phoenix - 1 year, 9 months ago

You could ask either of them what color shirt you're wearing (or ask any question that you know the answer to for a fact), so then you'll know who's telling the truth!

Callie Ferguson - 1 year, 9 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$