Question

In an examination 70% of student pass in C-programming and
60% pass in Computer Architecture, while 25% students failed and 220 students pass in both the subjects. Find total number of
students

Answer 1

Step-by-step explanation:

failed in C. programming

= 30%

failed in C. architecture

= 40%

failed in both = 25%

failed only in C. programming

= 30% - 25% = 5%

failed only in C. Architecture

= 40% - 25% = 15%

students failed at least in one or both subjects = 25% + 5% + 15%= 45%

passed in both = 220

55% = 220

100% = 220/55 * 100 = 400

Total Number of students=400 Answer

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