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44 votes
44 votes
How can i solve it
which method or way should I use
............. ..​

How can i solve it which method or way should I use ............. ..​-example-1
User Eric Noob
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2.2k points

1 Answer

16 votes
16 votes
Aliaa got a mark of 60 in her first 4 tests, so her total mark is 60 x 4 = 240. On her fifth test, she got a mark of 80.
So her average is:
(240+80)/5 = 320/5 = 64
Her avg is 64 (c).
User Cary Millsap
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2.5k points