Các câu hỏi tương tự
Câu 9:
The average mass of a group of children is 47kg. If of the number of children are girls and their average mass is 39kg. Find the average mass of the boys.
Answer: The average mass of the boys is kg
Câu 10:
A 6-digit number begins with the digit 8. The number is divisible by 9 and all digits of the number are different. What is the possible smallest value of this number?
Answer:
1/- Find the smallest 6 - digit number where only two digits are the same ?
If the sum of all digits in a whole number is 14 , find the smallest such number ?
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...
Đọc tiếp
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
Find the missing numberFind the value of...Find the 3rd number What is the smallest possibleArrange the digitsThere is one digit between the2sIn the figure Find the total surfaceFind the sum of... how many of them contain the shaded unitfind the area of...Find the remainderBetween A and B,at least one was selectedFind the positionsFind the raitio...to ...Find the lengthFind an rrangement
Đọc tiếp
Find the missing number
Find the value of...
Find the 3rd number
What is the smallest possible
Arrange the digits
There is one digit between the2's
In the figure
Find the total surface
Find the sum of...
how many of them contain the shaded unit
find the area of...
Find the remainder
Between A and B,at least one was selected
Find the positions
Find the raitio...to ...
Find the length
Find an rrangement
The sum of two number is 14,4 . If the first number is increased by 5 times and the second number is increased by 2 times then the new sum will equal 35,1. Find the first number.
If the sum of two numbers is 471 and there are 44 other numbers between the two numbers. Find the greater number.
Answer:
If the sum of two numbers is 471 and there are 44 other numbers between the two numbers. Find the greater number.
Answer:
Find the greatest 3 - digit number such that the product of its digits is 432 ?