Mathematics is a subject that has never been easy. Since we learned to count we have forgotten to sleep peacefully. Numbers can be so exhausting at times that we can make the biggest of mistakes in the simplest of mistakes.
You can screw up the most important deals, ruin the toughest exams, and look foolish to many with just a small numerical error.
But hey, who says mistakes aren’t good? Mistakes are part of human life.
Today we bring you a compilation of three difficult math puzzles that may force you to make mistakes, but you don’t need to worry about them. Remember, this is just a five-minute cheerful break you’re taking, and not your school math test!
Mathematical puzzles
Mathematical riddle 1:
Tom, a salesman, sold twice as many pears in the afternoon as in the morning. If that day he sold 360 kilograms of pears, how many kilograms did he sell in the morning and how many in the afternoon?
Mathematical riddle 2:
Julie finished ⅔ of a book. She estimated that she finished 90 more pages than she still has to read. How long is her book?
Mathematical riddle 3:
Rhea chose a number and divided it by 5. Then he subtracted 154 from the result and got 6. What number did Rhea choose?
ANSWERS:
Mathematical riddle 1:
Tom, a salesman, sold twice as many pears in the afternoon as in the morning. If that day he sold 360 kilograms of pears, how many kilograms did he sell in the morning and how many in the afternoon?
Answer:
Tom sold 120kg in the morning and 240kg in the afternoon.
Explanation:
Suppose x is the number of kilograms you sold in the morning.
Then in the afternoon he sold 2x kilograms.
Therefore, the total x+2x=3x.
In this case, 3x= 360.
x= 360/3
x= 120
Therefore, Tom sold 120 kg in the morning.
2 multiplied by 120 is 240 kg. Thus, he sold 240 kg in the afternoon.
Mathematical riddle 2:
Julie finished ⅔ of a book. She estimated that she finished 90 more pages than she still has to read. How long is her book?
Answer:
270 pages.
Explanation:
Suppose x is the total number of pages in the book, then ended ⅔ multiplied by x pages.
Next, you are left with x-⅔ .x=⅓.x pages.
23. x – ⅓ . x = 90
⅓. x = 90
x = 270
Mathematical riddle 3:
Rhea chose a number and divided it by 5. Then he subtracted 154 from the result and got 6. What number did Rhea choose?
Answer:
800
Explanation:
Suppose x is the number that Rhea chose, then
x/5 – 154 = 6
x/5 = 160
x= 800
So how many mistakes did you make? How many mistakes did you make?
In case you think math is easy, these math riddles are here to prove you wrong!
Categories: Optical Illusion
Source: ptivs2.edu.vn