Tricky math questions (edited)

I watch Million to One the other day on Discovery Science channel about one tricky question:

Variant Question #1: Where did the RM1 go?

You and 2 friends have lunch together, and the bill is RM25.

You all pay RM10 each, which the cashier hands back RM5.

But the cashier can't split RM5 three ways, so he gives you all RM1 each and keeps RM2 as a tip.

You all paid RM10 and got RM1 back. So, each of you paid (RM10 - RM1 =) RM9

There were three of you: 3 X RM9 = RM27

If you paid RM27 and the tip was RM2: RM27 + RM2 = RM29

Remember, you gave RM30, so RM30 - RM29 = RM1.

Where did the RM1 go???

Clue: Must have devious mind of a politician to solve. OK, I exaggerate. ;) You must have a solid logical mind to solve this. Scroll down for answer.

Variant Question #2: Where did the RM1 come from?

You and a friend have lunch together, and the bill is RM25

You both pay RM15 each, which the cashier hands back RM5 to you both.

The cashier keeps RM3 as a tip and hands back RM1 each.

So, you both paid RM14 each for lunch, for a total of RM28. The tip is RM3, and that makes RM31. Where did the RM1 come from?

Clue: Logic, logic! Scroll down for answer.

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Variant Question #1: Where did the RM1 go?

First of all, you must remember the bill is RM25.

All of you paid RM9, so: RM9 x 3 = RM27

The cashier took RM2, so: RM27 - RM2 = RM25 (End of discussion!)

The RM30 & RM29 question is just a decoy thrown to create confusion, politically right speaking of course!

BTW, the real correct answer is: RM25 the bill, RM3 is your changes, RM2 is the tip. Total is RM30.

Variant Question #2: Where did the RM1 come from?

Again, first of all, you must remember the bill is RM25.

Both of you paid RM14 each, thus make RM28. The cashier took RM3. So: RM28 - RM3 = RM25.

The real answer: RM25 is the bill, you get RM2, The tip is RM3. Total is RM30.

Get it? The point is, the way a question being asked (or answered) may not show the "truth". Only a critical mind will see through the "fog" of lies... Ah, so philosophical...

That's why we need oppositions to dissect through the unverified propagandas of... oops, terlebih sudah. ;)

-- Cheers

KY

Edited Jan, 13, 2009