Question

In an examination three marks are given for every correct answer and two negative for every incorrect answer.if Ravi get 20 correct and 4o incorrect answers what is his score

Answer 1

Answer:

-20 marks is the answer.

Answer 2

correct answer marks =20×3=60 .........(1)

incorrect answer marks =40×2=80 .........(2)

subtract (2) from (1)

60-80= -20