Question

Write down your age. Add 5 to it. Multiply the sum by 2. Subtract 10 from it. Next, divide it by 2. What do you get? Is it the same as your age?
( 3 marks )

Answer 1

Solution:
Let us assume your age is 10. (0.5 marks)
Then, adding 5 to it we get = 15 (0.5 marks)
Multiplying the result by 2 we get = 30 (0.5 marks)
Subtracting 10 from 30 we get = 30 - 10 = 20 (0.5 marks)
Dividing 20 by 2 we get = 20 ÷2 = 10 (0.5 marks)
Yes, it is the same. (0.5 marks)