There are 20 questions in a mathematical test .7 marks are awarded for each question answered incorrect. No mark is given for each question left unanswered.
If a pupil scores 100 marks what is the no. of questions he left unanswered.
2006-06-06 18:17:36 · 22 answers · asked by Anonymous in Education & Reference ➔ Homework Help
According to my calculations it is 14.285714258714258714258714258714
2006-06-06 18:22:33 · answer #1 · answered by Anonymous · 0⤊ 3⤋
Your right, I can't answer this one. I think that there is some missing information. Were any marks given or taken away for correct answers? There is not way to get 100 marks when every incorrect answer is worth 7 marks and no marks are given for unanswered and correct answers.
2006-06-07 01:37:18 · answer #2 · answered by Anonymous · 0⤊ 0⤋
5
2006-06-07 01:22:27 · answer #3 · answered by infamous1truck41 1 · 0⤊ 0⤋
14 wrong (7 marks are awarded for each question answered incorrect-you said it yourself)
2 right (assuming a right answer is 1 mark)
4 unanswered (no marks)
2006-06-07 01:23:35 · answer #4 · answered by Uluc B 3 · 0⤊ 0⤋
6
2006-06-07 01:19:47 · answer #5 · answered by pingin_69 3 · 0⤊ 0⤋
Seems like an incomplete equation to me. First of all, 7 won't go into 100 evenly. And in regards to it being incomplete, how many marks does the pupil get for a correct answer?
2006-06-07 01:21:50 · answer #6 · answered by SurfinOnDryLand 5 · 0⤊ 0⤋
7 marks are awarded for each question answered incorrect.
For each incorrect answer this guy gets 7 points! WHAT!!!
2006-06-07 01:20:18 · answer #7 · answered by syd_guy 3 · 0⤊ 0⤋
you haven't said whether he gets any marks for getting the question correct, or whether he gets any marks taken away. without that information, unless he gets less than 7 marks for a wrong answer at some point, the question cannot be answered. or, cannot be answered correctly, anyway.
2006-06-07 01:25:19 · answer #8 · answered by donlockwood36 4 · 0⤊ 0⤋
14 and 2/7.
2006-06-07 01:24:06 · answer #9 · answered by Anonymous · 0⤊ 0⤋
wow this is the first time im hearing that if u answer incorrect u get 7 marks...!!! which school did u study ny ways??? ......... no wonder u bet that none can answer u..........
2006-06-07 01:21:34 · answer #10 · answered by leo 3 · 0⤊ 0⤋
The teacher must have given him partial credit on one of the problems.
hey- i just answered your question, and you thought i couldn't.
and if my answer is wrong, i still answered the question. you said nothing about if the answer had to be correct.
2006-06-07 01:22:22 · answer #11 · answered by Boba Fett 3 · 0⤊ 0⤋