Class 6 Maths Puzzles: Linear Equations - Word Problems
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Puzzle 1
A number increased by 5 equals 12. Find the number.
Hint: Let the number be x. Form the equation x + 5 = 12.
Answer: x = 7
Puzzle 2
Twice a number is 18. Find the number.
Hint: Let the number be x. Form the equation 2x = 18.
Answer: x = 9
Puzzle 3
A number decreased by 7 is 10. Find the number.
Hint: Let the number be x. Form the equation x - 7 = 10.
Answer: x = 17
Puzzle 4
The sum of three times a number and 4 is 19. Find the number.
Hint: Let the number be x. Form the equation 3x + 4 = 19.
Answer: x = 5
Puzzle 5
Half of a number is 8. Find the number.
Hint: Let the number be x. Form the equation x/2 = 8.
Answer: x = 16
Puzzle 6
The difference between a number and 9 is 4. Find the number.
Hint: Let the number be x. Form the equation x - 9 = 4.
Answer: x = 13
Puzzle 7
If you subtract 3 from a number and multiply the result by 2, you get 14. Find the number.
Hint: Let the number be x. Form the equation 2(x - 3) = 14.
Answer: x = 10
Puzzle 8
One-third of a number is 5. Find the number.
Hint: Let the number be x. Form the equation x/3 = 5.
Answer: x = 15
Puzzle 9
The sum of a number and its double is 36. Find the number.
Hint: Let the number be x. Form the equation x + 2x = 36.
Answer: x = 12
Puzzle 10
The sum of a number and 5 times the same number is 36. Find the number.
Hint: Let the number be x. Form the equation x + 5x = 36.
Answer: x = 6
