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Question

Answer

Assume all questions correct.

30 x 5 = 150
150 – 108 = 42

Difference in marks between a correct and a wrong answer = 5 + 2 = 7

42 ÷ 7 = 6
There are 6 wrong answers.

30 – 6 = 24
There are 24 correct answers.

0 Replies 2 Likes ✔Accepted Answer