in a university examination,Paul scored 75% in English and 84%in maths what is the minimum percent he score in political science if he aims at scoring 75% overall?
Answers
Given : Paul scored 75% in English and 84%in maths
To Find : what is the minimum percent he score in political science if he aims at scoring 75% overall?
Solution:
Assuming Maximum mark in each exam = 100 P
Total Maximum Marks in 3 exams = 3 * 100P = 300P
75% overall = (75/100) 300P = 225
Scored in English = (75/100) 100P = 75P
Scored in Maths = (84/100) 100P = 84P
Minimum marks required in political science = 225P - 75P - 84P
= 66 P
66P in % = (66P/100P) * 100 = 66 %
minimum percent he score in political science if he aims at scoring 75% overall = 66 %
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