014: In a test, 5 marks are given for energy correct answer and (-2) marks
are given for energy wrong answer, Sudhir answered all the questions and
scored 30 marks though he got 10 correct answers.
Find the total number of questions in the test.
Answers
Answered by
1
Answer:
this is correct answer
Attachments:
Answered by
1
20
Step-by-step explanation:
total correct answer=10
no.of marks for each correct answer=+5
no.ofmarks for each wrong answer= -2
total marks of sudhir without removing wrong marks or negative marks=50
sudhir scored=30
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