in a test with 26 questions, ve points were deducted for each wrong answer and eight points were added for every correct answer. How many were answered correctly if the score was zero?
Answers
Answered by
1
Let the correct answers be x
∴ incorrect answers were (26 - x) [ ∵total question were 26]
1 correct answer = 8 point
x correct answer = 8x points
1 incorrect answer = -5 point
26 - x incorrect answers = -5(26 - x)
According to question
Points of Correct answers + Points of Incorrect answers = 0 (∵Total Score = 0)
8x - 5(26 - x) = 0
8x - 130 + 5x = 0
13x = 130
x = 10
∴ 10 questions were answered correctly while
26 - 10 = 16 questions were answered incorrectly
Answered by
0
Answer:
hello good morning
Step-by-step explanation:
dhvfubfd
Similar questions