Latest CTS Aptitude Question SOLUTION: In an examination a student must answer 65% of the questions correctly. But it was found t hat after answer 7 questions corretly out of the first 14, the student qualified. What is

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(#M40007420) CTS Numerical Ability question Analytical problem Keep an EYE

In an examination a student must answer 65% of the questions correctly. But it was found t hat after answer 7 questions corretly out of the
first 14, the student qualified. What is the min no. of questions in
the paper. (a) 22 (b) 18 (c) 20 (d) Can't say

Asked In CTS (12 years ago)

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Vignesh  (12 years ago)

c)20
Out of 14 questions 7 are correct and he requires 65%
to pass.
As per the question to qualify he has to answer rest all
questions correctly
Let there are X questions left in the paper so he has to
answer all X questions to qualify.

Hence,
(7 + X)/(14 + X)=65/100
Solving we get X = 6

So the minimum number of questions in the paper is
14 + X =14 + 6 = 20

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