13 On a 26 question test 5 points were deducted for each wrong answer and 8 points were added for

ans:10
let x ques were correct therefore (26-x) were wrong
8x-5(26-x)=0
8x+5x=130
x=10
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answer is 10.
if 10 were correct , therefore 16 would be wrong,
therefore 10*8 = 80 ,and 16*(-5)=80 so 80-80= 0
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answer is 10
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Ans is a) 10
as 10 right answer gives you, 80 marks and now the remaining questions are 16, which are wrong, so 1685 = 80 marks, so 80-80 = 0 marks, !
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answre is 10
->10*8=80 (right answers)
remaining 16 wrong answers
->16*5=80
->80-80=0
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if all qsn are correct then=26*8=208
if one qsn is wrong then marks=8+5=13
so if 16 qsn is wrong then=16*8=208
so no of right qsn=26-16=10.
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let correct answers=x
wrong=y
8(x)-5(y)=0
x+y=26
on solving above x=correct answers=10
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10 ans.
8x-5*(26-x)=0
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for each correct answer 8 mark
wrong answer 5 mark reduce
10*8=80 if 10 question is right mark is remaining 16 questions
16*5=80
80-80=0 so answer is 10
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go through the option it will be much fast. and the ans is 10.
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16 questions were wrong and 10 questions were right
10*(+8)+16*(-5)=0
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10
10*8-16*5=0
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Its answer is 10
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13. On a 26 question test, 5 points were deducted for each wrong answer and 8 points were added for right answers. If all the questions were answered how many were correct if the score was zero.
a) 10
b) 11
c) 13
d) 12