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| Total Answers and Comments: 7 |
Last Update: November 14, 2006 Asked by: susee |
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Submitted by: Anila Suguraman
x+y=20 10x-3y=148 x=correct answers y=wrong answers. Solving equations,x=16,y=4
Above answer was rated as good by the following members:
pratap.mahendra | |
March 23, 2006 00:14:52 | #4 |
| indians |
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Member Since: February 2006 Contribution: 1 |
RE: Ram gets 148 marks for 20 questions. +10 for corr...
| Total questions 20. let no of correct ans be x no of wrong ans be 20-x then 10x-3(20-x) 148 on solving for X 16 no of correct ans 16 and no of wrong ans 4
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November 10, 2006 03:30:45 | #6 |
| Ruchi |
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RE: Ram gets 148 marks for 20 questions. +10 for corr...
| Solution:- Let correct ans be x; Therefore wrong ans will be 20-x; Marks obtd for correct ans 10x; Marks obtd for wrong ans 3(20-x); Total marks obtd :- 10x - 3(20-x) 148 10x -
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November 14, 2006 09:19:06 | #7 |
| Anila Suguraman |
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RE: Ram gets 148 marks for 20 questions. +10 for corr...
| x+y 20 10x-3y 148 x correct answers y wrong answers. Solving equations x 16 y 4
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