please answer me fast
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Answer:
Mohan's score = 8
Reshma's score = 15
Helena's score = 0
Step-by-step explanation:
Given that,
5 marks are given for correct answer and -2 marks for incorrect answer
Mohan answered 4 correct and 6 incorrect
4×5 + (-2)×6
=20 + (-12)
=8
Reshma answered 5 correct and 5 incorrect
5×5 + (-2) ×5
=25 + (-10)
=15
Heena answered 2 correct and 5 incorrect, out of seven (as we know there are no negative or positive marks for not attempt)
2×5 + (-2)×5
=10 + (-10)
=0
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