Question

in a test +5 marks are given for every correct answer and (-2) marks are given for every incorrect answer. jay answered all questions and scored (-12) marks though he got 4 correct answer. how many questions has he attempted incorrectly

Answer 1

MARK S OBTAINED FOR 4 CORRECT ANS=4*5=20
LET X BE THE NO OF INCORRECT ANS.
MARKS OBTAINED FOR INCORRECT ANS=-2X
THEREFORE NO OF INCORRECT ANS=-2X+20=-12
X=16
THEREFORE NUMBER OF INCORRECT ANS IS 16.

Answer 2

Here is your answer