8. In a class teet (+4 marks for every
correct answer and (-2) marks are
given for every incorrect anwer
and no marks for not attemping
any question
(i) Ravi scored 20 marks If he he
got 10 correct
answers how many
question has attempted incorrectly
Answers
Answered by
0
Answer:
if Ravi got 10 correct answers how many incorrect answers will he get :
First we need to multiply 4 by 10, thus getting 40 marks. Now let's subtract that with the amount of marks he actually got : 40 - 20 = 20, so he lost 20 marks. Now in order to get the amount of question he attempted incorrectly, we have to divide 20 by 2
so the number of questions he attempted incorrectly is 10
hopefully that helped
if yes pls make me brainliest :D
Step-by-step explanation:
Similar questions