Maths - downgrade joke 2

i never know if you have read about this joke.it's small joke. eventually people with logic won't agree with this conclusion. here is the joke, what do get when 10 + 10 +10 ? logically speaking you might have the answer ,30 or 101010 well neither of that is the correct one. the answer to this joke is (rolling drummm ~ ), tang tang tang sound effect. gotcha . Hopefully this will help you. downgrade IQ accomplished. hahaha =b