Question

the average score of a student is 45 marks in four subjects. find the total marks.


PLEASE

ANYONE HELP
I SHALL BE
REALLY
THANKFUL​

Answer 1

Answer:

$average = \frac{total \: marks}{number \: of \: subjects}$

$therefore \: \frac{x}{4} = 45$

$x = 45 \times 4 \\ = 180$