1) In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. i. Radhika answered all the questions and scored 30 marks and get 10 correct answers. ii. Jay also answered all the questions and scored (-12) marks though he got 4 correct answers. How many incorrect answers had they attempted? I will mark you as the brainliest and give you 5 stars.
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Marks for correct answer= +5
Marks for incorrect answers= -2
Total marks= 30
Number of correct answers= 10
Marks she got for correct answers= 10*5= 50
Let x be number of incorrect answers Radhika got,
30=50+-2*x
30-50= -2*x
-20=-2x
-20/-2 = x
10= x
Radhika got 10 answers as incorrect.
Total marks Jay scored= -12
Number of correct answers= 4
Marks he scored for correct answers= 4*5= 20
Let the number of incorrect answers be x,
-12= 20-2*x
-12-20= -2x
-32= -2x
-32/-2 = x
16 = x
Jay attempted 16 answers as incorrect.
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Answer:
Sorry I cant give u solution
BUT answer
Radhika wrong answers =10
And Jay gave 16 answers wrong
PLEASE MARK ME AS BRAINLIST
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