Question

3) In a test(+5) marks are given for every correct answer and (-2) marks are given for every
incorrect answer
(1) Radhika answered all the questions and scored 30 marks though she got 10 correct
answers
(11) Jay also answered all the questions and scored (-12) marks though he got 4 correct
answers
How many incorrect answers had they attempted?
(4)​

Answer 1

Answer:

jay = 6 incorrect , radhika = 4

Step-by-step explanation:

Answer 2

1) Radhika scored = 30

Radhika scored correct answer = 10

Radhika's score by correct answer = 10 × 5 = 50

Radhika's score by incorrect answer = 50-30= 20

Radhika scored incorrect answer = 20 ÷2 = 10

11) Jay scored = -12

Jay scored correct answer = 4

Jay's score by correct answer = 4 × 5 = 20

Jay's score by incorrect answer = 20-(-12) = -32

Jay scored incorrect answer = 32 ÷ 2 = 16

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