Study the given table and answer the question that follows. ResultNumber of StudentsClass 7 AClass 7 BClass 7 CPassed both the Semester exams181517Passed semester 1 but failed semester 2472Passed semester 2 but failed semester 1676Failed in both the semester exams215 What is the percentage of students in class 7C who passed in at least one of the two semester examinations? (Round off to the nearest integer)

In a data table, the production of rice for country Q and country R is 60 lakh tons and 54 lakh tons respectively. The production of wheat for country S and country T is 52 lakh tons and 52 lakh tons respectively. What is the ratio of the total production of rice of countries Q and R to the total production of wheat of countries S and T?

In a survey of 5 countries (P, Q, R, S, T), the rice production values are 40, 60, 54, 70, and 51 lakh tons respectively. What is the average production of rice (in lakh tons) across all 5 countries?