Question

Ravi took a test which has 50 questions. The total grade was computed by awarding 10 points for each
correct answer and deducted 5 points for each incorrect answer
. He answered all 50 question and received a
score of 350. How many wrong answer did he attempt.​

Answer 1

Answer:

Step-by-step explanation:

let wrong answers= x

correct answers= 50-x

so the equations becomes 10(50-x)-5x=350

500-10x-5x=350

-15x=350-500

15x=150

x=10

so wrong answers= 10 qns

hope you understand

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Answer 2

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