A Puzzle For Kids

Shivam

SS Misri

Question 1) 

Ishan is thinking of a number. When he doubles the number, adds four and then multiplies the result by 3, the answer is 13. What is the number he is thinking of?

Solution for question 1)

In such questions:

Let the number he is thinking of be x.

When he doubles it, adds 4, multiplies the result by 3.

We have 3(2x+4) = 13

Or 6x + 12 = 13

Or 6x = 1

Solving the equation we obtain x = 1/6 Ans.