Maths vs English

In a class of 50 students ,each student passed Maths of English ,If 10 students passed Maths ,then find the number of students who passed English

In a class of 50 students, each student passed Maths or English. If 10 students passed both Maths and English, and 30 students passed Maths, the find the number of students who passed English.

Each of the questions given below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provident in the statements is sufficient to answer the question. Read both statements and- How many marks did Neha get in History ? I. Average marks obtained by Neha in History. Maths and English is equal to the average marks in Maths and English II. Neha got a total of 120 marks in Maths and ENglish together ?

Comprehension: Read the data given and answer the following questions: In a class of 60 students: 42 like Mathes, 32 like English, 12 like neither Maths nor English. How many students like both Maths and English?

Comprehension: Read the data given and answer the following questions: In a class of 60 students: 42 like Mathes, 32 like English, 12 like neither Maths nor English. Students who like only Maths from what percentage of the total number of students in the class?