5) In a test (+ 5) marks are given for every correct answer and (-2) m

1.	5) In a test (+ 5) marks are given for every correct answer and (-2) marks are given for everyincorrect answer.(1) Radhika answered all the questions and scored 30 marks though she got 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 ?
Answer» ANSWER: $\huge \bf {Sᴏʟᴜᴛɪᴏɴ} :$ (i) Marks given for ONE correct answer = 5 So, marks given for 10 correct answers = 5×10=50 Radhika's Score = 30 Marks OBTAINED for incorrect answers = 30-50=-20 Marks given for 1 incorrect answers = (-2) Therefore,No.of incorrect answers = (-20)÷(-2)=10 (ii) Marks given for 4 correct answers = 5 4 = 20 Jay’s score = –12 Marks obtained for incorrect answers = –12 – 20 = – 32 Marks given for one incorrect answer = (–2) Therefore number of incorrect answers = (–32) ÷ (–2) = 16 $\underline {▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬}$ ❥ @amritamohanty1472

5) In a test (+ 5) marks are given for every correct answer and (-2) marks are given for everyincorrect answer.(1) Radhika answered all the questions and scored 30 marks though she got 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 ?

Answer»

$\huge \bf {Sᴏʟᴜᴛɪᴏɴ} :$

(i) Marks given for ONE correct answer = 5

So, marks given for 10 correct answers = 5×10=50

Radhika's Score = 30

Marks OBTAINED for incorrect answers = 30-50=-20

Marks given for 1 incorrect answers = (-2)

Therefore,No.of incorrect answers = (-20)÷(-2)=10

(ii) Marks given for 4 correct answers = 5 4 = 20

Jay’s score = –12

Marks obtained for incorrect answers = –12 – 20 = – 32

Marks given for one incorrect answer = (–2)

Therefore number of incorrect answers = (–32) ÷ (–2) = 16

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