Math Quizzes 7/BLY/DIC - Average and Decimals
Average and Decimals Math Challenge
Welcome to the Average and Decimals Math Challenge! This quiz is designed to test your skills in calculating averages and working with decimals through a variety of engaging math problems.
Perfect for students and math enthusiasts, you will encounter questions involving:
- Averages
- Basic algebra
- Problem-solving with word problems
- Decimal operations
The total cost of 2 diaries and 3 files is $36. The cost of 1 file is $5. What is the average cost of the diaries?
$8.00
$10.50
$15.00
$21.00
The height of Adam, Bruce and Calvin is 1.82m, 1.71m and 1.63m respectively. What is their average height?
1.67m
1.72m
1.73m
1.77m
The total mass of a basket with 4 papayas is 7.1 kg. The total mass of the 4 papayas is 3.7 kg heavier than the mass of the empty basket. What is the mass of each papaya?
0.85kg
1.35kg
2.75kg
4.05kg
The average of 3 numbers was 94. When a 4th number was added, the new total became 392. What was the new number that was added?
98
110
139
282
Joey had the exact amount of money to buy 12 toothbrushes. However, she only purchased 7 toothbrushes. She then had $19.25 left. How much money did Joey have at first?
$3.85
$23.10
$26.95
$46.20
5 packets of chocolate wafers and 8 packets of marshmallow cost $44.20. Each packet of chocolate wafers is $1.30 cheaper than each packet of marshmallow. How much does 1 packet of marshmallow cost?
$1.30
$2.60
$3.90
$5.20
The table below shows the ages of 4 children. Who age closest to the average age of the 4 children?
| Name | Age |
| Alicia | 7 |
| Belinda | 9 |
| Christopher | 13 |
| Danny | 10 |
Alicia
Belinda
Christopher
Danny
A cupcake costs $1.50. For every 4 cupcakes bought, Xavier can get 1 cupcake for free. What is the greatest number of cupcakes that he can get with $40?
30
32
34
36
What is 12 tenths more than 0.12?
0.24
1.32
12.12
120.12
Edwin bought 3 identical pairs of socks and less than 5 pairs of shoes. The total cost of the socks was $75 and the average price of all the items that he had bought was $78.60. The total amount that he had spent on the shoes was a whole number in dollars. What was the average price of the shoes?
$393
$314
$197
$159
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