Question

In a class test containing $10$ questions, $5$ marks are awarded for every correct answer and $2$ marks are deduced for every incorrect answer and $0$ for questions not attempted.
Ritu attempted $7$ questions and get only $2$ correct answer. What is her score?

Answer 1

Total number of question in a test $=10$
Award for a correct answer $=5$ marks
Deduction for an incorrect answer $=2$ marks
Answer not attempting question $=0$ marks
Ritu's award for attempting $7$ question $3$ question not attempted, $2$ correct answers
$=(10-7)=3$ not attempted $=0$ marks and $5$ incorrect answers
$=2\times 5+3\times 0-5\times 2$
$=10+0-10$
$=0$ marks