Question

2. A quiz competition consists of 2 types of tests. a) Written test b) Rapid-fire For the rapid-fire, 2 marks is deducted for every wrong answer (W), and 5 marks are awarded for every correct answer (C). The performance of Team A and B are given below. Point scored in Team A= written test- 120, written test-W,W,C,C,W Team B= written test-115, written test- C,W,C,W,C Find the total Score of both the Teams? a) Team A-131 ,Team B -119 b) Team -124 ,Team -126 c) TeamA-141 ,Team B-120 d) TeamA-10, Team B-10

Answer 1

Answer:

In a class test containing 10 questions, 5 marks are awarded for every correct answer and (−2) for each wrong and 0 for not attempted questions. We will just forget unattempted questions as it will give her 0 marks

So let us say for any student who gave x right questions and y wrong questions then total marks is given as 5x+(−2)y i.e

5x−2y total marks.

1) Mohan gets 4 correct and 6 incorrect so total score 5×4−2×6 i.e 8marks

2)Reshma gets 5 correct anf 5 incorrect do total marks scored is equal to

5×5−2×5 i.e 15marks

3)Heena gets 2 correct and 5 incorrect. She attempts only 7 questions so for the remaining 3 questions she will score zero marks.

So total marks scored by Heena is 5×2−5×2+0 i.e 0marks