Latest Wipro Aptitude Question SOLUTION: In an examination, 35% candidates failed in one subject and 42% failed in another subject while 15% failed in both subjects. If 2500 candidates appeared at the examination, how man

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In an examination, 35% candidates failed in one subject and 42% failed in another subject while 15% failed in both subjects. If 2500 candidates appeared at the examination, how many passed in either subject but not in both ?

a. 325
b. 1175
c. 2125
d. None of these

Asked In Wipro (12 years ago)

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AMAL BARAN PAL  (10 years ago)

both fail=15% only fail in sub1=20% and only fail in subject2=(42-15)%=27%
so only pass in subject1=27% and only pass in subject2= 20% so (20+27)%=47% passed in either subject but not both
now 100% =2500
so 47%=(2500/100) * 47=1175
so ans is b.1175

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karthick  (9 years ago)

actual candidate=2500

paper1 failed student = 35

paper2 failed student = 42

student failed on both = 15


assume no of candidate = 100

paper 1 passed student = 100-35=>65

paper 2 passed student = 100-42=58

students failed in paper1 only=35-15=20

students failed in paper2 only=42-15=27

candidate failed both paper=20+27+15=62

candidate Passed both paper=100-62=38

candidate Passed in paper1 only = 65-38=27

candidate Passed in paper2 only=58-38=20

either passed in paper1 & 2 = 27+20 =47

but actual student = 2500 in question

so 2500 *47/100 =1175

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Kundan  (4 years ago)

pass in one subject=42-15 % of 2500

=27% of 2500 = 27/100 *2500 = 675

pass in another subject=35-15 % of 2500

=20% of 2500 = 20/100 *2500 = 500

student passed in either subject but not in both = 675+500 = 1175

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