Question

Angad was thinking of a number. Angad adds 20 to it, then doubles it and gets an answer of 53. What was the original number?

Answer 1

The original number is 6.5

Explanation:

You call the number x. so (x+20) times 2 = 53. Then you find that 2x+40=53. 53-40=13. Then 2x=13. 13/2=6.5, so x =6.5.