Question

in a test +3 marks are given for every correct answer and -1 mark given for every incorrect answer. meena attempted all the questions and scored +20 marks though she got 10 correct answers. how many incorrect answers has she attempted? how many questions were given in the test?​

Answer 1

Answer:

first answer:-10

second answer:-20

Step-by-step explanation:

marks she got for correct answer=10 x 3=30

total marks recieved by her=20

incorrect answer she attempted=20 - 10= - 10

marks scored for incorrect answer = -10/-1 =10

total no of questions= 20+10 =30

Hope this helps!!