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If 6 marks are awarded to right answer a...

If 6 marks are awarded to right answer and 3 marks are penalty for wrong answer. Then Prabhat's score was 120. If he attempted 50 questions then find number of correctly attempted questions ?

A

30

B

42

C

48

D

35

Text Solution

Verified by Experts

The correct Answer is:
A
Let number of correct questions be x
Then, incorrect questions `=(50-x)`
ATQ
`x xx 6-(50-x)xx3=120`
`x=30`
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