If in a class test 15 questions are given 4 and (-2) marks for every w

1.	If in a class test 15 questions are given 4 and (-2) marks for every wrong answer so renu answer only 5 right answer so what will be her score?
Answer» Step-by-step EXPLANATION: Let X be the number of INCORRECT ANSWERS gurupreet answered. Since he answered all and GOT 9 correct, 9+x=15 Hence x=15−9=6 So his total score is 4∗9+(−2)∗6=36−12=24

If in a class test 15 questions are given 4 and (-2) marks for every wrong answer so renu answer only 5 right answer so what will be her score?

Answer»

Step-by-step EXPLANATION:

Let X be the number of INCORRECT ANSWERS gurupreet answered.

Since he answered all and GOT 9 correct, 9+x=15

Hence x=15−9=6

So his total score is 4∗9+(−2)∗6=36−12=24

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If in a class test 15 questions are given 4 and (-2) marks for every wrong answer so renu answer only 5 right answer so what will be her score?

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