1. The table below shows the number of children per household in A Town. Calculate the average number of children per household.
Number of children
per household
|
Number of household
|
0
|
50
|
1
|
20
|
2
|
50
|
3
|
40
|
2. The table show the number of sweets received
by each child at a party. Calculate the average number of sweets received by
each child.
Number of sweets received by each child
|
Number of children
|
2
|
10
|
4
|
40
|
6
|
35
|
8
|
15
|
3. Johnny bought a certain number of water
bottles at an average price of $12. If he decided to buy one more water bottle
which cost $36, the average price would become $14. Find the total number of
water bottles he bought.
4. Natalie accidentally spilled ink onto her
results slip. Her results were as follows :
What could be the smallest possible
difference between her Chinese and Mathematic results ?
What could be the largest possible
difference between her Chinese and Mathematic
results ?
5. Mary
went to market to buy some apples at $2 each. She also bought an equal number
of oranges at a different price. The average price of an apple and an orange
was $1.50.Mary paid $5 more for the apples than the oranges she bought. How
many apples did she buy?
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