An exam of 145marks contains 50
questions. If some of the questions are of
two marks and some are of five marks.
then the number of two questions is
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Given : An exam of 145marks contains 50 questions.
some of the questions are of two marks and some are of five marks.
To Find : the number of two marks questions
Solution:
number of 2 marks questions = N
=> number of 5 marks questions = 50 - N
Total Marks = 2N + 5(50 - N)
= 2N + 250 - 5N
= 250 - 3N
250 - 3N = 145
=> 3N = 105
=> N = 35
35 Questions of 2 marks
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