Question

the average Marks scored by Anish in 3 descriptive tests of mathematics is 18 . find the marks scored by Anish in each test if he scored equal marks in all the tests​

Answer 1

Information Provided :-

• Anish scored equal marks in 3 tests
• His average marks was 18

Formula Used :-

• Average = sum of all observations/number of observations

Solution :-

$= > 18 = \dfrac{3x}{3} \: \: \: \: \: \: \\ \\ = > 3x = 18 \times 3 \\ \\ = > x = \frac{18 \times 3}{3} \\ \\ = > x = 18 \: \: \: \: \: \: \: \: \:$

therefore the marks scored by Anish in each test is 18