bạn cg thi violympic toán tiếng anh à :) mai mk cg thi
bạn cg thi violympic toán tiếng anh à :) mai mk cg thi
Find the minimum number of plastic cuboids with the dimension 9cm x 6cm x 7cm required to form a cube.
Dịch:
Tìm số lượng tối thiểu của hình lập phương nhựa với kích thước 9cm x 6cm x 7cm cần thiết để tạo thành một khối.
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.
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.
Câu 5:
Given that . Find the value of
.
Answer: ...
give that the distance from point a to point -1 on the number line is 7. Find a if a < 0 .
Class 6A has 42 pupils. 30 of them joined the Swimming club and 25 of them joined the Gymastic club. All pupils must be a member of at least one club, find the number of pupils who joined both clubs.
A 3 - digit number when divided by 57, the remainder is 27, when divided by 217 the remainder is 60. Find the number.