Look at this
Answer the world's toughest riddle!
For your help : -
Balance is the money left after spending
For example : -
If you have 100 rupees
And you spent 28 rupees
Then your available balance is now 72 rupees
If you will answer correctly I will send an instant 500 rupees in your paytm account
Asked by an IIT JEE ASPIRANT and all India mathematics OLYMPIAD TOPPER in class 10th
Answers
Answer:
The question sure is valid but the logic is wrong.
Questions like these never get old. I have been seeing them for several years now.
The answer to all of those questions is the same thing. You are adding the wrong column. Balances should not be added and they are not supposed to total. Period.
Let’s see why this is so.
Everyone agrees on that. To get the same 50 with another set of numbers, they have to be the same or some additive combination of these numbers. If you pick a random set of numbers then there is no way they add up to give the same value.
Now, Let’s look at the balances. I will write them in a different way.
30=50-20
15=30-15
6=15-9
0=6-6
So, Let’s see what happens when you add the balances
30+15+6=50−20+30−15+15−9+6−6
=(20+15+6+9)+1
And, That is why you are getting an extra 1. You are not adding the same numbers here. And, hence you get a different result/
And, In-fact If you just change the order of the first column, the value you get for the balance changes.
As, you see it all depends on the first value in the balance. If you give Zero (0) the first time. the first column in the Balance would be 50 and anything you add to it would be more than 50.
But, If you want to get the balance to be the same as the Spent sum then you can do the following:
There you go. You got your 50. Now you can forget about that one rupee and be happy.
So This whole problem is just a logical fallacy. But, the solution is simple enough.
Hope it will be help you
left column will never match right column
when we apply lhs = rhs then based on numbers taken in right column we get extra 1 rupee
(50-20) + (30-15) + (15-9) + (6-6) = 30 + 15 + 6
30 + 15 + 6 + 0 = 30 + 15 + 6
okay im not gonna waste my time on this riddle anymore bye good night