Question

Mohan gets 3 marks for each correct sum and loses 2 marks for each wrong sum he attempt 30 sum and obtains 40 marks. the no. of sums solved
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Answer 1

Answer:

Number of correct answers Mohan gets is   = 20

Number of incorrect answers Mohan gets is  = 10

Step-by-step explanation:

First Let x be the number of problems solved correctly.

then,Then number of incorrect questions will be = (30-x )

Now according to the given statement it says : -

Marks awarded for correct answers = 3x

Marks deducted for incorrect answers = 2 (30-x)

= 60 - 2x

Now in the equation form,

3x - ( 60 - 2x ) = 40

3x - 60 + 2x = 40

5x - 60 = 40

5x = 40 + 60

x = 100/5

So, x = 20

Because, The number of correct answers is = 20  and the number of incorrect answers is = 10