She answered : 50. (60/100)= 30 geometry questions
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Alice’s mathematics exam had 30 algebra questions and 50 geometry questions, each worth 1 mark. She got 70% of the algebra questions correct, and 60% of her questions correct. How many geometry questions did she answer correctly?
Alice’s mathematics exam had 30 algebra questions and 50 geometry questions, each worth 1 mark. She got 70% of the algebra questions correct, and 60% of her questions correct. How many geometry questions did she answer correctly?
Answer: ………….. questions.
Lara had some money in her savings account .She withdrew 3/8 of it and spent 2/9 of the withdrawal on some books .She gave 4/7 of the remaining to her mother and banked the rest of the money. If lara had $756 ,how much money did she have in her savings account at fist
1. Complete each number pattern.
44, 22, 10, 10, 8,....,.....
2. Anna saved $ 10 in January. The amount of money she saved in March was the total amount of money she had saved in January and February. The amount of money she saved in April was the total amount of money she had saved in February and March. If she had saved in this pattern up to October,
a, In wich month did she saved $ 210?
b, How much did she save in October?
sson 1. Lan in the apartment number? Lan house is in an 8 storey house, each floor has 8 apartments. One day, the class asked Lan: What is your house in the apartment? Ask me some questions, I will answer all your questions, but just say yes or no. Through these questions you try to figure out how many in the apartment Huy said: I will ask, are you in the apartment number 1, number 2, ..., No. 63. So with most 63 questions you will know which apartment you. You say, I only need 14 questions, 7 s...
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sson 1. Lan in the apartment number? Lan house is in an 8 storey house, each floor has 8 apartments. One day, the class asked Lan: "What is your house in the apartment?" "Ask me some questions, I will answer all your questions, but just say" yes "or" no. "Through these questions you try to figure out how many in the apartment" Huy said: "I will ask, are you in the apartment number 1, number 2, ..., No. 63. So with most 63 questions you will know which apartment you. You say, "I only need 14 questions, 7 sentences enough to know what floor you are on and 7 you can know exactly what you are in the apartment." Dear children, I have to ask several times to know. How are you Lan in the apartment?
Lesson 2. Game together across the bridge. Four people need to cross a bridge. Because of the weak demand, each time we go not more than two people, and because it is dark, we have to take the light. Four people walk differently, crossing the bridge with corresponding time of 10 minutes, 5 minutes, 2 minutes and 1 minute. Since there is only one lamp, each passage must be carried back to the next person. When two people go together, cross the bridge with a slower time. The following example is a way to go: - 10 minutes to go with people 5 minutes to bridge, 10 minutes to take. - 5 minutes to take the lamp back, take 5 minutes. - 5 minutes to go with people 2 minutes through the bridge, It takes 5 minutes. - 2 minutes to take the lamp back, take 2 minutes. - 2 minutes with people 1 minute over the bridge, take 2 minutes. Total time is 10 + 5 + 5 + 2 + 2 = 24 minutes. Let's try to get away with a little less time as possible, and if less than 19 minutes is great
Lesson 3. Cashmere. Mallard buys 27 apples that are identical in size and volume. However, the salesman said that of the apples on the right is a slightly lighter weight. You use a table scales on both sides to find the apple that light. The minimum number of weighs required. Let's help you find that little apple. If they find that fruit after less than 5 weightings, then it is good.
Choose the correct answer. Calculate: 3/4 x 5/4 ? 8/4 15/16 15/4 8/16 Câu hỏi 2: Calculate: 1/2 - 2/5 + 5/3 .... 49/30 52/30 53/30 51/30 Câu hỏi 3: Alices mother is now four times as old as she. Four years ago, her mother was thirty years more than her. How old is Alice now? 12 6 10 8 Câu hỏi 4: Choose the correct answer. Which of the following fractions is greater than 1? 2/3 7/9 11/12 14/8 Câu hỏi 5: Which fraction is equal to 51/34? 17/11 3/4 102/48 9/6 Câu hỏi 6: Fill in the blank: 37 minu...
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Choose the correct answer. Calculate: 3/4 x 5/4 = ? 8/4 15/16 15/4 8/16 Câu hỏi 2: Calculate: 1/2 - 2/5 + 5/3 = .... 49/30 52/30 53/30 51/30 Câu hỏi 3: Alice's mother is now four times as old as she. Four years ago, her mother was thirty years more than her. How old is Alice now? 12 6 10 8 Câu hỏi 4: Choose the correct answer. Which of the following fractions is greater than 1? 2/3 7/9 11/12 14/8 Câu hỏi 5: Which fraction is equal to 51/34? 17/11 3/4 102/48 9/6 Câu hỏi 6: Fill in the blank: 37 minutes 48 seconds + 29 minutes 36 seconds = .... minutes 24 seconds. 67 66 65 68 Câu hỏi 7: Charlie has eighteen pens more than Bill. Bill has one third as pen as Charlie. How many pens does Bill have? 9 pens 6 pens 3 pens 2 pens Câu hỏi 8: Fill in the blank: 1m2 = ....... cm2. Choose the correct answer. 10000 1000 100 100000 Câu hỏi 9: The sum of two numbers is the greatest - four digit number and their ratio is the smallest - two digit number. Find these numbers. 900 and 99 909 and 9090 989 and 10 999 and 989 Câu hỏi 10: Write 42/63 in lowest term. 4/6 4/9 2/3 6/9
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4. Write questions for the underlined part, beginning as follow: 1. You can catch the bus 45 to get to the post office. How ………………………………………………………………………? 2. Go straight and then turn left to Pine Street. The National Museum is at_ the end of Pine Street. Where………………………………………………………………………? 3. Don’t take a taxi. The cinema is just five-minute walk from here. Should ………………………………………………………………………? 4. No. There are not any bookstores near here. Are …………………………………………………………………………? 5. Yes. The Italian restau...
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4. Write questions for the underlined part, beginning as follow: 1. You can catch the bus 45 to get to the post office. How ………………………………………………………………………? 2. Go straight and then turn left to Pine Street. The National Museum is at_ the end of Pine Street. Where………………………………………………………………………? 3. Don’t take a taxi. The cinema is just five-minute walk from here. Should ………………………………………………………………………? 4. No. There are not any bookstores near here. Are …………………………………………………………………………? 5. Yes. The Italian restaurant is very far from here. Is …………………………………………………………………………..? 1. Read and complete the text with available words. second Palm two opposite Mr. Roy’s junction small Lane Street go through straight You have (1) packets to deliver. First, you go (2)__________ ahead and pass the park, then you will see the first (3) _____________ there, turn left, go straight ahead until you reach (4) . From this street, turn right and go along until you see a big building after a Newsagent building. Stop there, then you can see a small building in front of it. That is (5) Building, give him the first packet. From Mr. Roy’s office, you have to give the (6)____________ packet to Mr. Karto. Turn right and go along until you see a junction. From the junction, you have to turn left and (7)____________ the Queen Avenue. Then you will see another junction. From this junction, you have to turn left and go through the (8) Street. You will see a big building on your left and a small building (9) . ft- Mr. Kartos office is in that (10) ___________building. 2. Read and answer the question. 1. Flow many packets do you have to deliver? ………………………………………………………………………………………… 2. Where is Mr. Roy’s building? ………………………………………………………………………………………… 3. What will you see after going through the Queen Avenue? ………………………………………………………………………………………… 4. What streets do you have to go through? ………………………………………………………………………………………… 5. Is Mr. Karto’s office in the small building or in the big building? …………………………………………………………………………………………
After spending some money , Belinda , Jessica and Anna had an equal of money left . Belainda spent 1/2 of her money , Jessica spent 10% of her money and Anna spent $850 . If they had a total of $5697 in the end , how much money did the three girls have at first ?
Câu 1: of is Câu 2:Calculate: 4m 40cm + 3m 20cm cmCâu 3:Convert: 2kg 16g gCâu 4:Convert: 2hm 4dam mCâu 5:Fill the suitable number in the following blank.Câu 6:There are 72 kilograms of rice divided equally into three bags. How many kilograms of rice does each bag contain?Answer: kilograms.Câu 7:The first box contains 350kg of strawberries. The second box contains 50kg of strawberries more than the first one does. How many kilograms of strawberries do the two boxes contain?Answer: The two...
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Câu 1:
of is
Câu 2:
Calculate: 4m 40cm + 3m 20cm = cm
Câu 3:
Convert: 2kg 16g = g
Câu 4:
Convert: 2hm 4dam = m
Câu 5:
Fill the suitable number in the following blank.
Câu 6:
There are 72 kilograms of rice divided equally into three bags. How many kilograms of rice does each bag contain?
Answer: kilograms.
Câu 7:
The first box contains 350kg of strawberries. The second box contains 50kg of strawberries more than the first one does. How many kilograms of strawberries do the two boxes contain?
Answer: The two boxes contain kilograms of strawberries.
Câu 8:
Find the value of such that .
Answer:
Câu 9:
Find X such that .
Answer: X=
Câu 10:
Amanda's average mark for the first four tests was 88. How many marks did she score for the fifth test to improve her average mark to 90?
Answer: