BỒI DƯỠNG NĂNG LỰC TOÁN

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1 GIÁO VIÊN: NGUYỄN THÀNH LONG Sum Ratio ( Tổng tỉ ) ĐĂNG KÍ CHƯƠNG TRÌNH HỌC TRỰC TUYẾN TẠI VINASTUDY.VN QUA Question 1: The mount of orange juice and grape juice is 25 litres altogether. How many liters of juice of each type are there, knowing that the amount of orange juice is 4 times that of grape juice? The amount of grape juice: The amount of orange juice: Question 2: The perimeter of a rectangle school garden is 180 m. The width is 2 3 the length. Find the area of the school garden. Question 3: My class has 40 students. boys is quarter the number of girls. How many boys and girls are there? The numbers of boys is: girls is: Question 4: Mrs. Mai sold 320 m of silk. The amount of yellow silk is 5 3 of that of white silk. Find the amount of each type of silk? The length of white silk is: - Đam mê để thành công Trang 1

2 The length of yellow silk is: Question 5: A 36 meter rope is cut into two segments. The first segment is triple the second one. How long is each segment? The length of the first segment: The length of the second segment: Question 6: The average of two numbers is 25. The ratio of the two numbers is 2 : 3. Find the two numbers? The first number is: The second number is: Question 7: Class 4A has 30 students. Class 4B has 35 students. The two classes planted 260 trees. How many trees did each class plant? ( Each student planted the same number of trees ) Class 4A planted: Class 4B planted: Question 8: Hung worked 4 days. Dung worked 5 days. Nam worked 7 days. They received the total money is dong. How much money did each person receive? ( Each person received the same amount of money for one day. ) Hung reiceived: Dung received: Nam received: - Đam mê để thành công Trang 2

3 Question 9: In a school, there are 5 boys for every 4 girls. If the school has 720 pupils. How many boys and how many girls are there? boys: girls: Question 10: The first number is double the second number. The second number is double the third number. Knowing that the sum of the three numbers is 42, find each number? The third number is: The second number is : The first number is: Question 11: Divided the first number by the second number, we will get the quotient as 3 and the remainder as 1. Divide the second number by the third number, we will get the quotient as 3 and the remainder as 1, too. The sum of the three numbers is 96, find the three numbers? The first number: The second number: The third number: Question 12: A farm raises 325 oxes. Knowing that the number of cows is haft as much again as the number of bulls. Find the amount of each type of oxes? cows: bulls: Question 13: - Đam mê để thành công Trang 3

4 Three shops sold 2870 litres of oil. The first shop sold is double the second shop, the second shop sold is 1 4 the third shop. How many litres of oil did each shop sell? The first shop: The second shop: The third shop: Question 14: Find the quotient of two numbers knowing that this quotient is 1 5 the big number and it is 4 times more than the small number? Question 15: The sum of two numbers is 136. If we cross out number 4 in the last digit of the first number, we have the second number. Find the two numbers? The first number: The second number: Question 16: The sum of three numbers is The first number is 1 3 the second number, the third is the average of three numbers. Find the three numbers? The first number: The second number: The third number: Question 17: The sum of two numbers is 900. Their quotient is 3 and the remainder as 4. Find the two numbers? - Đam mê để thành công Trang 4

5 The big number: The small number: Question 18: The sum of two numbers is 760. Find the two numbers knowing that 1 3 the first number is 1 5 the second number? The first number: The second number: Question 19: An and Binh have 60 marbles altogether. If An gives 1 4 of the number of An s marbles for Binh, the number of marbles of two person is equal. How many marbles does each person have originally? marbles of An: marbles of Binh: Question 20: A store has 1200 kg of rice, knowing that the number of sticky rice is 3 2 the number of ordinary rice. Find the amount of each type of rice? sticky rice: ordinary rice: Question 21: The sum of two numbers is 100. Their ratio is 3. Find the two numbers? 7 The small number: - Đam mê để thành công Trang 5

6 The great number: Question 22; A rectangular garden, its perimeter is 200m, the length is 3 times the width. What is the area of the garden? Question 23: Grade 4 has 144 students. Know that 1 3 of the male students is 1 5 of the female students. Find the number of the male students and the female students? The male students: The female students: Question 24: A box of chalk has 135 chalks: red chalk and white chalk. Know that the number of white numbers is double the number of red chalks. How many white chalks and red chalks are there? white chalks: red chalks: Question 25; An s field has perimeter by 252m. The width is 3 4 the length. Uncle An used 1 8 of its area to plant the bonsai. What is the left area? Question 26: The sum of two numbers is 80. The first number is 7 9 the second number. Find the two numbers? The small number: - Đam mê để thành công Trang 6

7 The great number: Question 27: The sum of two numbers is 707. The first number is 2 5 the second number. What is their difference? Question 28: Find the third number such that the first number is 3 7 the second number and 1 2 the third number. The first number is 164 units less than the second number? Question 29: The sum of three numbers is 336. The second number is 3 5 the first number and 3 8 the third number. Find the third number? Question 30: The sum of two numbers is 120. If the first number divided by the second number we get the quotient by 4 and the remainder is 5. Find the first number? Giáo viên: Nguyễn Thành Long - Đam mê để thành công Trang 7

8 Câu 1: The amount of grape juice: 5 Câu 11: ĐÁP ÁN The first number: 67 Câu 21: The small number: 30 The amount of orange juice: 20 The second number: 22 The great number: 70 The third number: 7 Câu 2: 1944 Câu 12: cows: 195 Câu 22: 1875 bulls: 130 Câu 3: The numbers of boys is: 8 girls is: 32 Câu 13: The first shop: 820 The second shop: 410 The third shop: 1640 Câu 23: The male students: 54 The female students: 90 Câu 4: The length of white silk is: 120 The length of yellow silk is: 200 Câu 14: 20 Câu 24: white chalks: 90 red chalks: 45 Câu 5: The length of the first segment: 27 Câu 15: The first number: 124 Câu 25: 3402 The length of the second segment: 9 The second number: 12 Câu 6: The first number is: 20 Câu 16: The first number: 243 Câu 26: The small number: 35 The second number is: 30 The second number: 729 The great number: 45 The third number: 486 Câu 7: Class 4A planted: Câu 17 The big number: Câu 27: Đam mê để thành công Trang 8

9 Class 4B planted: 140 The small number: 224 Câu 8: Hung reiceived: Câu 18: The first number: 285 Câu 28: 246 Dung received: The second number: 475 Nam received: Câu 9: boys: 400 Câu 19: marbles of An: 40 Câu 29: 168 girls: 320 marbles of Binh: 20 Câu 10: The third number is: 6 Câu 20: sticky rice: 720 Câu 30: 97 The second number is : 12 ordinary rice: 480 The first number is: Đam mê để thành công Trang 9

A 28-inch ribbon was cut into four equal lengths. How long was each piece of ribbon?

A 28-inch ribbon was cut into four equal lengths. How long was each piece of ribbon? Name Score Benchmark Test 1 Math Course 1 For use after Lesson 0 1. (5) A -inch ribbon was cut into four equal lengths. How long was each piece of ribbon? A. 7 inches B. 7 1 inches. () In a class of students