Câu 1 :Each of cars can take 8 people. How many cars needed to take 124 people?
Câu 2 : How many integer numbers between 200 and 300 are there for which the hundreds digit equals the sum of the other two digits?
Câu 3 : The average of five numbers is 20. The average of the five number is 18 when one of the numbers is chaned to 4. What is the orginal value of the changed number?
Câu 4 :A book has 250 pages starting at number 1. How many digits are there in the page numbers of the book?
Câu 5 : Find A, if A is 3 less than the average of 48; 55; 29 and A. The value of A is…
Câu 6 : The sum of denominator and numerator of a fraction is 121 and the fraction is equal to 4/7. Find the denominator of the fraction?
Câu 7 : The sum of two numbers is equal to 77. If the first number is multiplied by 8 and the second by 6, the two product are equal. The larger of these numbers is…
Câu 8 : Which is the greatest 2 - digit number divisible by 2, 3 and 4?
Câu 9 : Calculate: (1 + 2/5) x 6/7.
Câu 10 : Give the number sequence: 1, 4, 7, 10, 13, … Find the 15th term of the number sequence.
toán bằng tiếng anh nè các bạn vui lòng ghi cách giai nhe
how many natural numbers having three digits such that the tens digit squared equals the product of other digits and the difference between that number and its reversed other is 495?
From 4 letters ab18 one can make all 18 numbers with 4 digits. (In a number, each digit is written only once.) The sum of all 18 possible numbers is 90216. Find a and b.
how many distinct 4 digit numbers are divisible by 2 can be from digits 0, 2, 5, 6, 9
If the sum of two 2-digit numbers ab and ac and a 1-digit number d is 30, and d>b>c>a. Find ab
Giải hộ mình với! Mình cảm ơn!
Given that 4 points A, B, C, D are on the same line. How many segments are there?
Edmond was one of 14 athletes in the track - and - field team. They are numbered from 1 to 14. The sum of the numbers of the other 13 is athletes 100.
What is Edmond's number?
Có hay ko : các số nguyên a,b,c,d thỏa mãn
1. abcd + a = 2019
2.abcd + b = 1999
3. abcd + c = 2010
4. abcd + d = 2001