10 Fun Math Puzzles with Solutions | Brain Teasers & Riddles
Math Puzzle: ๐ค๐ข
๐ข Can You Solve This?
If:
๐ 3 + 3 = 12
๐ 4 + 4 = 20
๐ 5 + 5 = 30
Then, what is 6 + 6 = โ
Comment your answer below! โฌ๏ธ
Solution: โ
Look at the pattern carefully:
A + A = A ร A
๐ 3 + 3 = 3 ร 4 = 12
๐ 4 + 4 = 4 ร 5 = 20
๐ 5 + 5 = 5 ร 6 = 30
So,
๐ 6 + 6 = 6 ร 7 = 42
Correct Answer: 42 ๐
Did you get it right? Comment below! โฌ๏ธ
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1๏ธโฃ Puzzle:
If:
๐ 2 + 2 = 8
๐ 3 + 3 = 18
๐ 4 + 4 = 32
Then, what is 5 + 5 = โ
Solution:
A + A = A ร A
๐ 5 + 5 = 5 ร 5 = 25 โ
2๏ธโฃ Puzzle:
A father is 40 years old, and his son is 10 years old. How many years later will the father be twice as old as his son?
Solution:
Let X be the number of years.
๐ (40 + X) = 2 ร (10 + X)
๐ 40 + X = 20 + 2X
๐ 40 – 20 = 2X – X
๐ X = 20 โ
After 20 years, the father will be 60, and the son will be 30.
3๏ธโฃ Puzzle:
What comes next in this pattern?
2, 6, 12, 20, 30, ?
Solution:
Pattern: nยฒ + n
๐ 1ยฒ + 1 = 2
๐ 2ยฒ + 2 = 6
๐ 3ยฒ + 3 = 12
๐ 4ยฒ + 4 = 20
๐ 5ยฒ + 5 = 30
๐ 6ยฒ + 6 = 42 โ
The missing number is 42.
4๏ธโฃ Puzzle:
A man buys a bat and a ball for โน110. The bat costs โน100 more than the ball. How much does the ball cost?
Solution:
Let X be the cost of the ball.
๐ Bat = X + 100
๐ Total = X + (X + 100) = 110
๐ 2X + 100 = 110
๐ 2X = 10
๐ X = 5 โ
The ball costs โน5.
5๏ธโฃ Puzzle:
Fill in the blank:
9 + 2 = 711
8 + 5 = 313
7 + 6 = 413
5 + 4 = ?
Solution:
The pattern follows: A + B = (A – B)(A ร B)(A + B)
๐ 5 + 4 = (5 – 4)(5 ร 4)(5 + 4) = 1209 โ
6๏ธโฃ Puzzle:
What 3 consecutive numbers add up to 96?
Solution:
Let the three numbers be X, X+1, X+2
๐ X + (X+1) + (X+2) = 96
๐ 3X + 3 = 96
๐ 3X = 93
๐ X = 31 โ
So, the numbers are 31, 32, and 33.
7๏ธโฃ Puzzle:
I am a 3-digit number. My tens digit is 5 more than my ones digit. My hundreds digit is 8 less than my tens digit. What number am I?
Solution:
Let the number be XYZ
๐ Y = Z + 5
๐ X = Y – 8
๐ If Z = 1, then Y = 6 and X = 6 – 8 = -2 โ (Not possible)
๐ If Z = 2, then Y = 7 and X = 7 – 8 = -1 โ
๐ If Z = 3, then Y = 8 and X = 0 โ
The number is 083 or just 83.
8๏ธโฃ Puzzle:
You have 10 apples. You take away 3. How many do you have?
Solution:
๐ You took 3 apples, so you HAVE 3 apples. โ
9๏ธโฃ Puzzle:
Using only addition, how can you make 8 + 8 = 4 true?
Solution:
๐ 8 AM + 8 Hours = 4 PM โ
๐ Puzzle:
A clock shows 3:15. What is the angle between the hour and minute hands?
Solution:
๐ Formula for angle:โฃ(30รH)โ(5.5รM)โฃ\left| (30 ร H) – (5.5 ร M) \right|โฃ(30รH)โ(5.5รM)โฃ
๐ H = 3, M = 15
๐ Angle = | (30 ร 3) – (5.5 ร 15) |
๐ = |90 – 82.5| = 7.5ยฐ โ
๐ Hope you enjoy these puzzles! Comment your answers and challenge your friends!
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