In a class (+2) marks are given for every correct answer and (–1)mar

1.	In a class (+2) marks are given for every correct answer and (–1)marks are given for every incorrect answer and no marks for not attempting any question . 1. raju scored 30 marks . if he has got 18 correct answer, how many questions has he attempted incorrectly 2. rahul scores - 5 marks in this test though he has got 7 correct answers . how many questions has he attempted incorrectly
Answer» Answer: 6 and 19 Step-by-step explanation: 1. Let number of INCORRECT question be x then, ( 18 * 2 ) + (-1 * x ) = 30 x == 6 Therefore number of incorrect question is 6 2. Let number of incorrect question be x then, ( 7 * 2 ) + (-1 * x ) = -5 x == 19 Therefore number of incorrect question is 19 I hope this may help u Pls MARK the answer as brainlist Pls follow me

In a class (+2) marks are given for every correct answer and (–1)marks are given for every incorrect answer and no marks for not attempting any question . 1. raju scored 30 marks . if he has got 18 correct answer, how many questions has he attempted incorrectly 2. rahul scores - 5 marks in this test though he has got 7 correct answers . how many questions has he attempted incorrectly

Answer»

Answer:

6 and 19

Step-by-step explanation:

1. Let number of INCORRECT question be x then,

( 18 * 2 ) + (-1 * x ) = 30

x == 6

Therefore number of incorrect question is 6

2. Let number of incorrect question be x then,

( 7 * 2 ) + (-1 * x ) = -5

x == 19

Therefore number of incorrect question is 19

I hope this may help u

Pls MARK the answer as brainlist

Pls follow me