Question

In an examination, 65% students passed
in Civics and 60% in history, 40% passed in both
of these subjects. If 90 students failed in History
and Civics both, then what is the total number of
students?
​

Answer 1

Answer:

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Answer 2

Answer:

600

Step-by-step explanation:

civics passed= 65------(65-40=25)

history passed=60-----(60-40=20)

both passed = 40

both failed = 100 - (25+20+40)

                 = 100 - 85

                 = 15  

 if 15----------------90  

    100-------------600

so answer should be 600

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