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There are 200 questions on a 3 hr examination.Among these
questions are 50 mathematics problems.It is suggested that
twice as much time be spent on each maths problem as for
each other question.How many minutes should be spent on
mathematics problems, plz give detail, how to solve?

Answer Posted / kishore

50 maths ques
150 remaining ques
the time spent on each math ques is twice the remaining
150x+50(2x) = 180 (min)
x= 18/25
total time on maths ques is 50(2x)
50 * 2 * 18/25 = 72min

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