In question, stat

False

Number of literate males in age 20 – 30 = 600

Number of literate males in age 30 – 40 = 800

Number of literate males in age 40 – 50 = 500

⇒ Number of literate males in above age 20 = 600 + 800 + 500

⇒ Number of literate males in above age 20 = 1900

Hence, the statement is false.