Math Question

Riddle: If I had 40 books then read 19 books and then bought 30 more how many do I have now?

Answer: 89 because the ones that I read I did not sell them!

Source: https://www.riddles.com/index.php/9925

If I had 40 books then read 19 books and then bought 30 more how many do I have now? — Math Question by Kingsley v1.

Riddle: If I had 40 books then read 19 books and then bought 30 more how many do I have now? Answer: 89 because the ones that I read I did not sell them! — by Kingsley v2.