avan123455 avan123455

10-03-2022
Mathematics

contestada

In a maths competition each correct answer gets 3 marks, but one mark is deducted for each incorrect answer.
Grace answers all 30 questions that are on the test and scores 30 marks. How many questions did she get wrong?

Respuesta :

merowhh merowhh

10-03-2022

Grace got 20 questions wrong.

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