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 Quantitative  |  Question 5 of 14    Print  
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

A.36
B.72
C.60
D.100

B



  
Total Answers and Comments: 2 Last Update: June 13, 2008   
  
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May 29, 2008 07:05:46   #1  
rajupriya Member Since: May 2008   Contribution: 2    

RE: 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 proble
Total number of questions = 200
number of maths prblm      = 50
examination hours             = 3 hours


    converting hours into minutes=3*60=180minutes
    Number of other questions     =200-50=50
    Time taken to complete 150 questions = 150*0.72 mins=108 mins
                    (for maths prblms, the time taken  to complete each ques should be doubled than taken for the other ques)
    Time taken to complete 50 maths prblm=50*1.44 mins=72 mins

 
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June 13, 2008 11:20:10   #2  
subbu_raja36 Member Since: June 2008   Contribution: 3    

RE: 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 proble
other question=150

maths=50

total time=3hours=180 min

as maths takes twice the time of other ..the equation can be made as

x=time for one question

(150*x)+(50*2x)=180

150x+100x=180

250x=180

x=.72 min

for maths 2x so 1.44min

50*1.44=72min

 
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 Related Questions

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 problemsA.36B.72C.60D.100


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