Question

Write down a number. Add 5 to it. Multiply the sum by 2. Subtract 10 from it. At the end divide it by 2. What do you get? Is it the same? (3 marks)

Answer 1

Solution:
Let us assume the number be 10. (0.5 marks)
Then, adding 5 to it we get = 15 (0.5 marks)
Multiply by 2 we get = 30 (0.5 marks)
Subtract 10 from 30 we get = 30 - 10 = 20 (0.5 marks)
Divide by 2 we get = 20÷ 2 = 10 (0.5 marks)
Yes, it is same. (0.5 marks)