NOTE:
•Average
= Total ÷ no. of quantity
•Note:
0 is considered one quantity too
•Total
= average x no. of quantities
For more revision:
•Visible
Thinking 5B Pg 25
Qn 28
•Word Problems: refer to VT for more practice revision
•Average topical test
•Word Problems: refer to VT for more practice revision
•Average topical test
Try!
In
a test, A scored 34 marks, B scored 48 marks and C scored 20 marks. How many
marks should C have scored if they want to increase their average by 3marks?
Answer will be posted as a comment. Check your work!
Total --> 34 + 48 + 20
ReplyDelete= 102
Average--> 102 ÷ 3
= 34
New Average --> 34 + 3
= 37
New total --> 37 x 3
= 111
C needs to score --> 111 – 34 – 48
= 29
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ReplyDeleteSorry!
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