In a test (+5) marks are given for every correct answers and (-2) marks are given every incorrect answers
Radhika answered all the questions and scored 30 marks though she got 10 correct answers
Answers
Answered by
1
Answer:
भी तभ ऊरमयबीयमबयबमह यह पसंद है कि वह इस बार फिर से तैयार किए जा रहे हैं
Answered by
7
Answer:
20 questions
Step-by-step explanation:
marks for correct answer = 5
negative marks = -2
so
questions which are correct = 10
10×5 = 50
marks by radha = 30
so wrong answers be x
50-30=20
so
-2×x=20
x=20/-2
x=-10
therefore 1o wrong answers
totally 20 questions
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