Question

World's toughest riddle:

I have Rs 50

Spend - Balance
20 - 30
15 - 15
9 - 6
6 - 0

-----------------------
50 - 51

Where did the Rs 1/- came from?

Answer 1

Your answer is ---

According to given figure the data is right but the sequence of written this data is wrong. Suppose someone ask for time to you. You see the clock . Suppose the hour hand at 9 and minute hand at 12. So you say the time is 9 o clock you can't add 9 and 12 . In above figure we also not add the balance money .

Let take a example

Suppose you have 10Rs.

You spend Rs1 so we have 9 and after that you spend Rs 1 then the remain balance is 8 . If You add 9 and 8 then the answer will be 17 which is not possible .

So, in the given figure their is nothing to confuse . Only representation of data is wrong .


【 Hope it helps you 】

Answer 2

Answer:

(Pretty much all posts are transcribed quickly after I make the videos for them–please let me know if there are any typos/errors and I will correct them, thanks).

The short answer is there is nothing wrong with the numbers. The correct equation is:

total spent + current balance = 50

The riddle is a trick question because it involves adding up the values in the balance column, which do not have to sum to 50.

Suppose a person spends 50 in a series of four transactions s1, s2, s3, s4. The corresponding balances would be:

Spend Balance

s1 50 – s1

s2 50 – s1 – s2

s3 50 – s1 – s2 – s3

s4 50 – s1 – s2 – s3 – s4

Sum of spending Sum of balances

s1 + s2 + s3 + s4 200 – 4s1 – 3s2 – 2s3 – s4

Notice the sum of the balance column is:

200 – 4s1 – 3s2 – 2s3 – s4

There is no reason this sum has to be 50. In the original problem with s1 = 20, s1 = 15, s1 = 9, and s1 = 6, it just works out the sum of the balance column is 51.

You might think it’s easy, but you’d be amazed how this problem confuses many people! I challenge you to ask 10 people and see how many actually figure it out!