In recent survey of the student of a public university . It is found that 65% students are good in Mathematics and 45% students are good in Mathematics and 45% students are good in Statistics. How many students are good in both Mathematics and statistics of the public university?

Correct Answer: 10%
Students good in both mathematics and statisties = (65 + 45)% - 100% = 110% - 100% = 10%