Question

In a class test, 5 marks are given for each correct answer and _2 for each incorrect answer. Aaryav answered all the question and scored 30 marks, though he got 10 correct answers. Find the no. of questions he answered incorrectly​

Answer 1

Answer:

Incorrect Answers = 10

Step-by-step explanation:

Given,

(5 X 10) + (-2 X x) = 30

50 + (-2x) = 30

50 - 2x = 30

-2x = -20

x= -20/-2

x= 10