Question

for students there is a test .
the question are 15 .
for correct answer the marks are +3 for incorrect answer the marks are -1 .Mary answer 10correct answer . now find total and incorrect answers
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Answer 1

Answer:

25

Step-by-step explanation:

10*3=30

5*-1=-5

30-5=25

Answer 2

Answer:

40 marks

STEP BY STEP EXPLANATION

TOTAL NUMBER OF QUESTION 15

TOTAL MARKS =15×3=45

NUMBER OF INCORRECT ANSWER DONE BY MARY=15-10=5

SO MARY GOT= 45+(-1×5)

=45-5

=40

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