you are going to get grounded for a week if you don't get at least 80% in your science class.So far you have 237 out of the total 300 points. The final test in worth 100 points. What is the minimum score you need to get on the final test? Assume the teacher rounds properly

• I have to get 80%...
  Total points=300+100=400
  so, 80% of 400 is 320
  
  I've already got 237..
  So I've to get (320-237)=83
• 13 years agoHelpfull: Yes(44) No(1)
• 80+3=83
  (80 of new test and 3 for prvius )
• 13 years agoHelpfull: Yes(7) No(4)
• 1) If i am giving all the tests and 237 is the total score of all the subjects and science is a one subject.
  As the condition is only related with science subject so nothing is left concerning with the total numbers or percentage. i have to get 80 marks if the final test is of science is left only.
  
  2) If the 237 score is of science only so far.
  Then I have to get 83 marks. as total points is 300+100=400 and 80% of 400 is 320 (which i have to get).
  i got = 237
  i need= 320-237= 83 to get 80%.
• 13 years agoHelpfull: Yes(5) No(0)
• 80% of 400 is 320 i.e the that should be scored are 320-237= 83
• 13 years agoHelpfull: Yes(3) No(0)
• 80% of 400 is 320
  so
  320-237=83
  is the minimum score needed in final test.
• 13 years agoHelpfull: Yes(3) No(0)
• (273+x)/400=.8,i.e x=83,now as rounding of is considered so if x=81 he gets 79.5~80%.
• 10 years agoHelpfull: Yes(0) No(0)
• looks like my parents :D :P
• 9 years agoHelpfull: Yes(0) No(0)