Question

Jameson got these markers in three tests: 72, 80 and 82.

He had one more test to sit. He wanted an average of 80 for the four tests. What mark must he get in the fourth test?
He must score a
on the 4th test

Answer 1

Jameson got these markers in three tests: 72, 80 and 82. He had one more test to sit. He wanted an average of 80 for the four tests. What mark must he get in the fourth test? He must score a on the 4th test.

= Jameson got 86 on his 4th test.

SOLUTION

(this is based on my calculations)

80 × 4 = 320

• so, we must get 320 scores all in all.

• The given are 72, 80, and 82

72 + 80 + 82 = 234

320 - 234

= 86