Question

3)
In a class test, 4 marks are given for every correct answer and (-2) marks for every
Incorrect answer. Yash answered all questions and scored (-16) marks. If he
answered 5 questions correct, how many questions did he answer incorrectly.​

Answer 1

Answer:

Step-by-step explanation:

marks given for every correct answer =4

marks for everyincorrect answer =(-2)

yash score = -16

no. correct answers= 5

let no. incorrect be y

then :

(5 x 4) + (-2 x  y)= -16

20 -2y=-16

-2y = -16 - 20

-y= -36/2

y= 18

so no. incorrect answers = 18