Maths Set Theory Puzzle

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?




Similar Riddles

What four weights can be used to balance from 1 to 30 pounds?

Asked by Neha on 25 Apr 2022


Why is the longest human nose just 11 inches?

Asked by Neha on 17 Aug 2021

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

Asked by Neha on 20 Sep 2024


The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Asked by Neha on 17 Nov 2023

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Asked by Neha on 03 May 2021

A boy was driving a car, a girl took a lift from her. She asked his name. The boy said - my name is hidden in my car’s number, find it if you can. After this, she got down Car number was [ WV733N ] Can you guess the name now?

Asked by Neha on 22 Mar 2024


Decode below rebus
D
N
A
T
S , D

Asked by Neha on 14 May 2021

What does below rebus means ?

Break the Riddle

Asked by Neha on 15 Jan 2021

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

Asked by Neha on 03 Mar 2022


What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED

Asked by Neha on 09 Sep 2023

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.