Question

3 minutes.
9. In a quiz competition, 10 points are awarded for every correct answer, 5 points are deducted for
every wrong answer. No points are deducted for not attempting a question. There are three
contestant teams: St. Joseph School, Indian Public School and Government Girls' School
a. The team from St. Joseph School scored 125 points, though they answered 15 questions
correctly. How many questions were not answered correctly by the team?
b. The team from Indian Public School gave 10 correct and 5 incorrect answers. What is
their score?
c. The team from Government Girls' School scored 150 points, though they gave 18 correct
rrect answers had they given? Which team won the competition?
Tear
H.​

Answer 1

Answer:

a. They answered 15 questions correctly and there are 10 points for every correct answer. So they scored 15×10=150 points from correct answers. Yet they scored 125 points and 5 points are deducted for every wrong answer. So 150-125=25. 25÷5=5. They answered 5 questions incorrectly. hence 25 points were decreased.

b. 10 correct answers= 10×10=100 points

5 incorrect answers=5×5=25

total points=100-25=75 points

c. They gave 18 correct answers=18×10=180 points

They had 150 points. so 180-150=30 points

30÷5= 6 incorrect answers

Government Girls' School won the competition