289.
Solve the following problem.
The daily highest temperatures of a place last week were 8C, 11C, 18C, 23.5C, 27C, 28C and 31.5C. What was the average highest temperature last week?
290.
Solve the following problem.
The weights of Maggie, Wing, Sally and Yan are 22 kg, 25 kg, 23 kg and 27 kg respectively. What is the average weight of the four girls?
291.
Solve the following problem.
In a quiz, the points got by Maggie, Wing, Sally and Yan were 95, 86, 74 and 74 respectively. What is the average points each got?
292.
Solve the following problem.
The average length of 3 rolls of ribbon is 25 cm. It is known that the length of red ribbon is 25 cm and that of yellow ribbon is 21 cm. What is the length of blue ribbon?
293.
Solve the following problem.
Man Fai saved 48 dollars in June, 65 dollars in July and 37 dollars in August. How much did he save each month on average?
294.
Solve the following problem.
In a carnival, there are 200 red balloons, 185 yellow balloons, 205 blue balloons and 150 green balloons. How many balloons are there for each colour on average?
295.
Solve the following problem.
5 people are buying fruits. 2 of them pay 28 dollars each and the other 3 pay 37 dollars each. How much does each one pay on average?
296.
Solve the following problem.
A kilogram of crackers costs 84 dollars. A kilogram of wafer costs 70 dollars. A kilogram of chocolate biscuits costs 68 dollars. What is the average cost of biscuits per kilogram of buying 5 kg of crackers, 3 kg of wafer and 2 kg of chocolate biscuits?
297.
Solve the following problem.
In a road construction, workers completed 125 m on the first day, 132 m on the second day, 100 m on the third day and 143 m on the fourth day. How many metres of road did workers complete each day on average?
298.
Solve the following problem.
The cost of a comic book is 28 dollars, a magazine is 15 dollars and a computer book is 23 dollars. What is the average cost of each book of buying 3 comic books, 5 magazines and 2 computer books?
299.
Solve the following problem.
The cost of a pack of salmon sushi is 17 dollars and a pack of shrimp sushi is 20 dollars. What is the average cost per pack of buying 6 packs of salmon sushi and 4 packs of shrimp sushi?
533.
Solve the following problem.
There are 3 glasses of watermelon juice. Their capacities are 215 mL, 206 mL and 230 mL respectively. How much watermelon juice does each glass contain on average?
534.
Solve the following problem.
Lily read 45 pages of story book on the first day. She read 64 pages on the second day and 53 pages on the third day. How many pages did Lily read a day on average?
535.
Solve the following problem.
John is 1.22 m tall. Mace is 1.13 m tall. Carrie is 1.19 m tall. Ming is
1.3 m tall. What is the average height of the 4 people?
536.
Solve the following problem.
The length of Fanny’s hand is 12.5 cm. The length of Ling’s hand is
11.6 cm. The length of Chung’s hand is 12.8 cm. The length of Kit’s hand is 12 cm. The length of Tat’s hand is 13.1 cm. What is the average length of the 5 people’s hands?
537.
Solve the following problem.
Simon jogged 4 rounds in a park. He made a record of the times he took for jogging each round. They are 55 seconds, 48 seconds, 49 seconds and 57 seconds respectively. What is the average time for Simon to jog each round?
538.
Solve the following problem.
There are 3 bags of marbles. Their weights are 561 grams, 249 grams and 404 gramsrespectively.What is the average weight of each bag? (Round off the answer to the nearest tenth.)
539.
Solve the following problem.
The daily profit of a fast food restaurant last week was 1002 dollars, 1246 dollars, 1183 dollars, 998 dollars, 1505 dollars, 1744 dollars and 2097 dollars respectively. What was the average daily profit? (Give your answer correct to one decimal place.)
540.
Solve the following problem.
A copper key ring costs 16 dollars and a silver key ring costs 18 dollars. Peter buys 3 copper key rings and 8 silver key rings. What is the average cost of each key ring?(Round off the answer to the nearest tenth.)
541.
Solve the following problem.
Five people are buying a present. Two of them pay 34 dollars each and the other three pay 78 dollars each. How much does each person pay on average?
542.
Solve the following problem.
A box of playing blocks costs 42.5 dollars. A robot dog costs 84 dollars. A doll costs 63.8 dollars. Peter buys 3 boxes of playing blocks, 2 robot dogs and 4 dolls. What is the average cost of each toy? (Giveyour answer correct to one decimal place.)
543.
Solve the following problem.
There are 8 bags of peanuts. 3 of them weigh 2.8 kg each, one bag weighs 3 kg and the other 4 bags weigh 3.3 kg each. What is the average weight of each bag of peanuts? (Round off the answer to the nearest tenth.)
544.
Solve the following problem.
The average weight of 4 red pens is 35 grams and the weight of a bluepen is 32 grams. What is the average weight of these 5 pens?
545.
Solve the following problem.
There are 11 pieces of strings. 4 of them are 6.9 cm long each, 5 of them are 8.8 cm long and the others are 7.3 cm long each. What is the average length of these 11 pieces of string? (Give your answer correct to one decimal place.)
546.
Solve the following problem.
The average mark of Millie’s results in Chinese, English and Mathematics is 89 marks. She got 98 marks in Mathematics and 74 marks in English. How many marks did she get in Chinese?
547.
Solve the following problem.
The average length of 4 pieces of electric wire is 3.4 m. 2 of them are
2.8 m long each and another one is 4.1 m long. What is the length of the remaining wire?
760.
Look at the bar chart below and then do the calculation.
This is a chart recording the amount of water Billy drank everyday this week.
Find the average amount of water Billy drank each day.
(++++++)
= (Rounded off to the nearest tenth.)+
The average amount of water Billy drank each day is L.
761.
Solve the following problem.
William jogged 6 rounds. The time he spent on jogging each round was 48 seconds, 50 seconds, 45seconds, 59 seconds, 60 seconds and 73 secondsrespectively. What is the average time for jogging each round? (Round off the answer to the nearest tenth.)
762.
Solve the following problem.
A kiwi fruit costs 3.8 dollars. An orange costs 2.7 dollars. An apple costs 3 dollars. 3 kiwi fruits, 2 oranges and 6 apples are bought. What is the average cost of each fruit? (Give your answer correct to one decimal place.)
916.
Cindyrecorded the numbers of pages of 12 books and wrote them on the book covers.
Group any 3 books randomly and write the number of pages below. Calculate the average number of pages in each group. (Give your answers correct to the whole numbers.)
(a)
Each book has _____ pageson average.
(b)
Each book has _____ pageson average.
(c)
Each book has _____ pageson average.
(d)
Each book has _____ pageson average.