the sum of the digits of two number is 12.the tens digits is twice the unit digit.find the number

几道英文奥数题,希望大家能帮我把意思说出来,1.There is a 3-digit number,and the sum of figures on each digit is 16,The figure on the 10-digit equal the sum of the single-digit and the hundredth-digit,Now if the figures on the hundre 英语翻译in a two-digit number,the units digit is greater than the tens digit by 3 If tens digit and the units digit of the number are interchanged,the sum of the number obtained and the original number is 121.FIND THE TWO NUMBERS 翻译if an integer is three times as large as the sum of the figures in its digit the sum of the digits of two number is 12.the tens digits is twice the unit digit.find the number write a program to read a four digit integer and print the sum of its digits.Hint :Use / and % operators. 要用方程1 there is a double-digit number.The figure on its single is 1 larger than that on its tenth-digit ,and the double digit numbei is 5 times as large as the sum of figures on its tenth-digit and on its single-digit.Question:what is the doub 英语翻译If we write out all the three-digit numbers with the sum of the figures on each digit equivalent to 10 ,and arrange them from great to small,then what is the tenth number in them? the value of the units digit in 6^47 name the place value of the digit 3 The value of the unit'digit in 6^47The value of the unit'digit in 5^77 都不太明白.1、what is the difference between the value of 4 in 6471 and 4093?2,find the sum of the value of digit2“ in 4025 and 2902.主要是不懂value of 4和value of digit”2“是什么意思,有什么区别.求中文翻译.1题中的d 请帮我解释下Find and list all four-digit numbers in decimal notation that have the property that the sum of its four digits equals the sum of its digits when represented in hexadecimal (base 16) notation and also equals the sum of its digits wh From the list of two-digit prime numbers, 英语翻译A number is chosen randomly from all of the 2-digit integers ,find the probability that the units digit of the number is 3. whats wrong with this program?/**Ex25.java* Ex25-To accept a three-digit number * and display the digit each on a single line,* and the sum of these digits.*@author *@version Oct.14.2010*/import java.awt.*;import java.util.Scanner;public class Ex25{p what is the sum of 4 and success is the sum of details 英语翻译If n is a positive integer,and if the units’ digit of n2 is 6 and the units’ digit of (n－1)2 is 9,the units’ digit of (n＋1)2 is .