Question

In an examination there were 25 questions. 3 marks were awarded for each correct answer and 1 mark

is deducted for each wrong answer. A boy answered all the questions and scored 35 marks. How many

of his answers were correct?​

Answer 1

Answer:

10

Step-by-step explanation:

Please mark me as the brainliest

Answer 2

let the nom of correct questions be c .

he attempted all the questions

no. of questions attempted wrongly by him =25-c

2c-1(25-c)=35

3c=35+25=60

c=60/3=20