5. In a class test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. i) Rona answered all the questions and scored 30 marks though she got 10 correct answers ii) Sona also answered all the questions and scored (-12) marks though she got 4 correct answers.How many incorrect answers had they attempted ?
Answers
Answered by
1
Answer:
10 and 16
Step-by-step explanation:
Rona- for correct answers got 10*5=50 points and lost 20, to score 30. So she answered 20/2=10 questions incorrectly
Sona- for correct answers got 4*5=20 points and lost 32, to score -12. So she answered 32/2=16 questions incorrectly
Answered by
1
Answer:
i belive 6 sorry if i am wrong
Step-by-step explanation:
Similar questions