Mathematical Fraction

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()




Similar Riddles

Take one out and scratch my head, I am now black but once was red. What am I?

Asked by Neha on 29 Jul 2025


John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

Asked by Neha on 22 Jun 2023

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

Asked by Neha on 30 Jan 2023


What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Asked by Neha on 07 Jan 2025

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

Asked by Neha on 22 Jan 2021

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?

Car Number Riddle

Asked by Neha on 13 Mar 2021


10+10 and 11+11 can give you the same answer.

Explain how?

Asked by Neha on 07 Aug 2021

What does below Rebus say?

XLR8

Asked by Neha on 10 May 2021

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

Asked by Neha on 29 Dec 2023


Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

Asked by Neha on 25 Sep 2025

Hot Articles

Amazing Facts

Challenging

There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.