Question

In a class test, (+2) marks were given for every correct answer and (–1) mark was deducted for every incorrect answer. Rashmi answered all the questions and scored 30 marks. She gave 20 correct answers. Jashpal also answered a few questions and scored –10 marks. He gave 5 correct answers. How many questions did Rashmi and Jashpal attempt incorrectly?
PLEASE ANSWER STEP BY STEP SO I WILL MARK YOU BRAINLIEST​

Answer 1

Step-by-step explanation:

x is the no. of incorrect answers

rashmi= 10 incorrect answers

jashpal= 20 incorrect answers

Answer 2

rashmi answered 10 questions incorrectly and jashpal answered 20 incorrectly

Step-by-step explanation:

let y be number of wrong answers

rashmi:

30 = (20×2) + (y × -1)

30 =40 -y

y = 10

jaspal:

-10 = (5×2) + (y×-1)

-10 = 10 - y

y= 20