Maths Logic

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10




Similar Riddles

There are three cows, two dogs, and one cat: How many legs do you have?

Asked by Neha on 20 Aug 2026


During which month do people sleep the least?

Asked by Neha on 13 Apr 2022

Replace the question mark with the number below given a simple math problem.

Fill the Question Mark

Asked by Neha on 03 Dec 2024


You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

Asked by Neha on 02 Jul 2023

👉 I am a 7 letter word.
👉 I like mornings
👉 If you remove my 1st letter you can drink me
👉 If you remove my 1st & 2nd letters 👉 you may not like me
👉 If you remove my last letter, you will see me on television
👉Answer is really very interesting
Let us see who solves this....

Asked by Neha on 14 May 2021

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

Asked by Neha on 25 Mar 2026


What does below pictogram mean?

Compile the Pictogram

Asked by Neha on 11 Aug 2021

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Asked by Neha on 01 May 2025

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

Asked by Neha on 08 Jun 2025


Can you spot the hidden girl in the picture below?

Spot the Girl

Asked by Neha on 06 Feb 2025

Hot Articles

Amazing Facts

Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.