Question

In a science olympiad , 5 marks are given for each correct answer and -2 incorrect answers . pankhuri answered all the questions and scored 26 marks , though she got 2 incorrect answers . How many questions did pankhuri answer correctly ?​

Answer 1

Answer:

6

Step-by-step explanation:

Let the no. of correct answers attempted be x

Then marks scored for correct answers = 5× x= 5x

No. of answers attempted incorrectly=2

so marks scores for incorrect answers= (-2)×2= -4

According to the question , total marks scored by her = 26

5x + ( -4) =26

5x - 4=26

5x =26+4

5x=30

x=30÷5

x=6