In a class 80% have passed english,70% passed hindi, 10%
didnot passed either.If 144 students passed both. What is the
total strength of the class
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Answer Posted / wareagle
Forget the 80% and the 70%. It is there to confuse you.
10% of class did not pass any test. 144 students passed both tests.
There for 90% must = 144 students. 10% + 90% = 100%.
Therefore 10% + 144 = 100%. So 144 = 90%. or 100% = 144/0.90 = 160
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