Question

In a class test 3 Marks are given for every correct answer and -2 marks are given for every incorrect answer and no marks are given for not attempting any question. 1.Rakesh scores 18 marks by attempting 16 questions . How many questions has he attempted correctly and how many has he attempted incorrectly ?​

Answer 1

Answer:10,6

Step-by-step explanation:

Let the no. Of questions he attempted correctly be x.

No. Of incorrect answers=(16-x)

A.T.Q.

3x-2(16-x)=18

3x-32+2x=18

5x=50

x=10

(16-x)=16-10

=6

Answer 2

Please refer the attachment for answer...