Two teams participating in a competition had to take a test in a given time. Team
B chose the easier test with 300 questions, and team A the difficult test with 10%less questions. Team A completed the test 3 hours before schedule while team B completed it 6 hours before schedule. If team B answered 7 questions more than
team A per hour, how many questions did team B answer per hour?  Choose the correct answer:
A) 21  B) 22  C) 23  D) 25  E) 27
If t hrs is normal time,   then   270/(t-3) + 7 = 300/(t-6)   so t = 18   so Qns done by team A per hour = 270/15= 
<gadget id="calculator">270/15</gadget>
<output>18</output>
18 qns.   Qns done by team B per hour= 300/12= 
<gadget id="calculator">300/12</gadget>
<output>25</output>
25 qns.   ANSWER:25
<result>D</result>
Two teams participating in a competition had to take a test in a given time. Team
B chose the easier test with 300 questions, and team A the difficult test with 10%less questions. Team A completed the test 3 hours before schedule while team B completed it 6 hours before schedule. If team B answered 7 questions more than
team A per hour, how many questions did team B answer per hour?