Question

Pinky scored 40 marks in a test getting 3 marks for each right answer and losing 1 mark for each wrong answer. Had 4 marks been awarded for each correct answer and 2 marks were deducted for each wrong answer, then Pinky again would have scored 40 marks. How many questions were there in the test? [Answer: 40]​

Answer 1

Answer:

40

Step-by-step explanation:

Let No. of correct answer be x

and, No. of incorrect answer be y

We are given,

                    3x-y = 40 .....................................................(1)

         and,   4x-2y = 40 = 2x-y = 20 ................................(2)

By subtracting Eqn. (1) from Eqn. (2)

    

                  2x-y =   20

               + 3x-y = +40

               -     +      -

         = -x = -20

so , x= 20

By putting x = 20 in eqn (1)

  3(20) - y = 40

so, 60 - y =40

        so, y = 20

 So Total No of Questions = x + y = 20 + 20 

                                            = 40

PLEASE MARK BRAINIEST

Answer 2

Answer:

私は天才であり、私はより上手になり、よりインテリジェントになるために私は非常にハードな仕事をしています