There are 200 questions on a 3 hrexamination.Among these questions are 50 mathematics problems.It is suggestedthat twice as much time be spent on each maths problem as for each otherquestion.How many minutes should be spent on mathematics problems  Choose one
A) 71min	B) 72min	C) 73min	D) 74min	E) 75min
taking the time in min so convert time into min=60*3= 
<gadget id="calculator">60*3</gadget>
<output>180</output>
180   x= time spent on maths question   2x=time spent on maths question   x(200-50)+2x(50)=180   150x+100x=180   250x=180   x=0.72   now time spent on maths questions=2*0.72*50= 
<gadget id="calculator">2*0.72*50</gadget>
<output>72</output>
72min   ANSWER:72min
<result>B</result>
There are 200 questions on a 3 hrexamination.Among these questions are 50 mathematics problems.It is suggestedthat twice as much time be spent on each maths problem as for each otherquestion.How many minutes should be spent on mathematics problems