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Integers — MATHS STD 7 — Question

Gujarat BoardEnglish MediumSTD 7MATHSIntegers1 Mark
Question
In a test $(+5)$ marks are given for every correct answer and $(–2)$ marks are given for every incorrect answer. Jay also answered all the questions and scored $(–12)$ marks though he got $4$ correct answers. How many incorrect answers had they attempted?
✓

Answer

According to question,
Marks given for $4$ correct answers $= 5 \times 4 = 20$
Jay’s score $= –12$
Marks obtained for incorrect answers $= –12 – 20 = – 32$
Marks given for one incorrect answer $= (–2)$
Therefore, number of incorrect answers $= (–32) \div (–2) = 16$

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