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The units digit of a two digit number exceeds twice the tens digit by 1. Find the number if the sum of its digits is 10.

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โˆ™ 2010-03-01 23:46:44
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Q: The units digit of a two digit number exceeds twice the tens digit by 1 what numbers if the sum of its digit is 10?
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Dan found a two digit odd number one of its digits was half the other the number was greater than 50 what is the number?

If the number is odd, the last digit is odd. That means the ten's digit must be twice the one's digit. There are only four two-digit numbers where the ten's digit is twice the one's digit: 21, 42, 63, 84. Check which of these satisfy all the clues.


How many four digits numbers can be formed using 0123456789?

Assuming that the first digit of the 4 digit number cannot be 0, then there are 9 possible digits for the first of the four. Also assuming that each digit does not need to be unique, then the next three digits of the four can have 10 possible for each. That results in 9x10x10x10 = 9000 possible 4 digit numbers. If, however, you can not use the same number twice in completing the 4 digit number, and the first digit cannot be 0, then the result is 9x9x8x7 = 4536 possible 4 digit numbers. If the 4 digit number can start with 0, then there are 10,000 possible 4 digit numbers. If the 4 digit number can start with 0, and you cannot use any number twice, then the result is 10x9x8x7 = 5040 possilbe 4 digit numbers.


2 The sum of two numbers is 56 The larger exceeds twice the smaller by 2. find the number?

18 and 38


2 The sum of two numbers is 56 The larger exceeds twice the smaller by 2 find the number?

18 and 38


How many one-digit numbers are twice the size the sum of their digits?

None. The sum of one digit can't be twice the size of the digit.


How many 5-digit numbers can be made only using the numbers 1 2 3 4 5 with out repeating a number twice example 12345 12354 12435?

120 5-digit numbers can be made with the numbers 12345.


What is 2 digit number twice the 10 digit?

A proper 2-digit number (which must be smaller than 100) cannot be twice a 10-digit number (which must be larger than 999,999,999).


The hundreds digit of a 3 digit number is a third of the ones digit and twice the tens digit what is the number?

216.


The hundreds digit of a three digit number is one third of the ones digit and twice the tens digit What is the number?

216


What is the only number that is equal to twice the sum of it's digits?

Well 18 works. [1+8 = 9]. It's not exactly the only one, though. Consider zero. The sum of the digits (0) is zero. And twice zero = zero.Here are some ideas to see if there are others: For 1-digit numbers, the number is the sum, so the zero, above, is the only one that satisfies the conditions. For 2-digit numbers, the largest sum possible is 18 [99: 9 + 9]. Twice that sum is 36, so no numbers greater than 36 (with 2-digit numbers).Now consider the unknown number with digits AB. So the sum = A + B, and the number = 10*A + B. Now the number is twice the sum, so:10*A + B = 2*(A + B). Rearranging, we have 8*A = B, so you can substitute whole numbers for A, and calculate B. There is the trivial case of zero: 8*0 = 0, which was already covered. If A = 1, then B = 8, which gives us 18. With A = 2, then B= 16, so that's not a 2-digit number. So 18 is the only 2-digit number.What about 3-digits: the largest 3-digit sum is 9+9+9=27. Twice that is 54, which is a 2-digit number. So there can be no 3-digit numbers, satisfying the conditions.


What are the greatest and least 6-digit numbers in which the digit in the thousands place is twice the digit in the tens place?

The largest six digit number period is 999999. The largest number meeting your criteria is 998949.


What is my number.......I am the smallest 6 digit even number you can makemy ones digit is twice my tens digit?

1


I am the smallest 6-digit even number you can make My ones digit is twice my tens digit What number am I?

100012


How many different four digit combinations are there of the numbers zero through nine and using one number twice in the combination?

There are 360 of them.


What is a two digit number that is one third of the number is 7 more than one fourth of the number and the first digit is twice the second digit and the sum of the digits is a two digit number?

2.3


When the digits of a two digit number are reversed the new number is 36 more than the original number the units digit is twice the tens digit What is the original number?

17


What is the greatest six digit even number where the ten thousand digit is twice tens digit hundred thousand digit is more than 6 the thousands digit is divided by ones digit and no digit repeated?

In order to get the greatest number we want to try and get the biggest possible numbers in the hundred thousands, ten thousands and thousand places. There is no rule against the hundred thousands digit being 9 so it must be 9. The ten thousand digit needs to be twice the tens so it must be 8 while the tens is 4. The thousands digit is divided by the units, and the number is even. So thousands must be 6 and the units must be 2. Thus the hundreds must be 7. The number is 986,742


How can you check if a number is a multiple of 4?

Add the last digit (units digit) to twice the previous digit (tens digit). If this sum is divisible by 4, so is the original number.


The tens digit of a certain 2 digit number exceeds the units digit by 4 and is 1 less than twice the units digit. Find the two digit number?

AB If B = x, then A = x + 4 Also, A = 2x -1 So that, 2x - 1 = x + 4 x = 5 B = 5, A = 9 So AB = 95


What is the greatest six digit number in which thousand place is twice the digit in the tens place?

The number that matches your criteria is... 998949


Are you five digit number your ones digit is 5 less than your hundreds digit your other digits are all twice your ones digit what number are you?

22621, 44742, 66863, 88984


What is the smallest six digit number in which the thousands place is twice the digit in the tens place?

100,000


What is the largest four digit number such that the second digit is one fourth of the third digit and the third digit is twice the first digit and the last digit is the same as the first digit?

4284


What is the smallest 6 digit number in which the digit in the thousands place is twice the digit in the tens place?

102, 010 2 in the thousands place is twice 1 in the tens place,


One number is 11 more than twice another number If the sum of the numbers is twice their difference find the numbers?

11,33

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