CUET UG 2025 — General Test Quantitative Reasoning

The problem gives:

• Total questions attempted = 120
• Marks for correct answer = +3 marks
• Marks for wrong answer = -1 mark
• Final score = 320 marks

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Let correct answers = $c$c and wrong answers = $w$w.

Since all 120 questions were attempted:

$c + w = 120$c+w=120 ... (Equation 1)

Since correct answers give +3 marks and wrong answers lose 1 mark:

$3c - w = 320$3c−w=320 ... (Equation 2)

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Adding both equations:

$$c + w = 120$$c+w=120

$$3c - w = 320$$3c−w=320

$$4c = 440$$4c=440

$$c = 110$$c=110

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Finding wrong answers:

$$w = 120 - c$$w=120−c

$$w = 120 - 110$$w=120−110

$$w = 10$$w=10

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The student answered 10 questions incorrectly.