Solving Problems
Posted on November 26, 2009
Romila appeared for a maths exam. She was given 100 problems to solve. She tried to solve all of them correctly but some of them went wrong. Any how she scored 85.
Her score was calculated by subtracting two times the number of wrong answer from the number of correct answers.
Can you tell how many problems she solved correctly?
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February 13th, 2013 - 15:53
correct ans is 92
November 18th, 2011 - 18:09
correct answer is 55
October 10th, 2011 - 21:36
I think for above question 15problems wrong .It is correct or not please tell me correct answer.
December 3rd, 2009 - 17:58
x+y=100
x-2y=85
solving both equations we get y=5
and x=95
so correct ans are 95
September 6th, 2011 - 20:48
sorry , i can’t understand about the correct ans, 95 . we already got the ans
95 and 5 then wat is that 95 ???????????? explain pls..
March 22nd, 2012 - 12:29
As per given question
x+y=100
x-2y=85
after solving both equations we get y=5
and x=95
so correct ans are 95
score was calculated by subtracting two times the number of wrong answer from the number of correct answers i.e
no. of wrong answer appeared is 5*2=10 i.e as is 95-10=85
December 1st, 2009 - 15:37
correct answers=95