# Purchases of an inventory item during the last

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22) Purchases of an inventory item during the last accounting period were as follows:Number of items Unit price5 \$4.003 \$6.00
7 \$9.0011 \$7.00What was the weighted average price per item?
Diff: 2 Type: SA Page Ref: 12-17Topic: 1.3 Applications – AveragesObjective: 1-3: Through problem solving, compute simple arithmetic and weighted averages.23) Purchases of an inventory item during last month were as follows:Number of items Unit price5 \$5.0010 \$8.008 \$6.0015 \$3.00What was the weighted average price per item?
Diff: 2 Type: SA Page Ref: 12-17Topic: 1.3 Applications – AveragesObjective: 1-3: Through problem solving, compute simple arithmetic and weighted averages.24) Noriko’s final mark for her Financial Mathematics course was based on four tests with different weightings. Test one counted for 10% of the final grade, test two for 20%, test three for 30% and test four for 40%. If Clara received 70% on test one, 85% on test two, 64% on test three and 72% on test four, calculate her final mark.
Diff: 2 Type: SA Page Ref: 12-17Topic: 1.3 Applications – AveragesObjective: 1-3: Through problem solving, compute simple arithmetic and weighted averages.25) On a trip, a motorist purchased gasoline as follows: 66 litres at 69.0 cents per litre; 69 litres at 70.5 cents per litres; 80 litres at 71.5 cents per litre; and 57 litres at 74.5 cents per litre.1.a) What was the average number of litres per purchase?2.b) What was the average cost per litre?3.c) If the motorist averaged 9.75 km per litre, what was her average cost of gasoline per kilometre?