Question

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

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 1

Answer:

6 incorrect answers

so he got 12 marks

Answer 2

Answer:

11

radhika has 10 incorrect ans

as correct ans is 10

marks of correct ans is10×5 =50 eq 1

now she done 10 incorrect ans as 10×-2=-20 eq2

so 50-20=30

that is the total marks scored by radhika