pls tell answer to Q3
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Answered by
0
Answer:
17
Step-by-step explanation:
according to the question
x+y=24 ....(1)
(he attempted 24 questions in total)
3x−2y=37 ..(2)
(he gets 3 marks for correct sum and loses 2 marks for wrong sum)
Multiplying (1) by 2 and adding it to (2).
2x+2y+3x−2y=48+37
5x=85
x=17
From (1),
17+y=24
y=7
He did 17 correct
Answered by
0
Answer:
ok
thank you
Step-by-step explanation:
thank you
ok
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