The number is 54. Here's how: If X exceeds Y by 20% then X = 1.2*Y, To designate a reversed number, let X = A*10 + B, and Y = B*10 + A. So: A*10 + B = 1.2*(B*10 + A). Rearranging, we have 8.8*A = 11*B, and divide both sides by 1.1, we have 8*A = 10*B. So the only two integer values which satisfy this are A=5, and B=4.
Plug this in and X = 54, Y = 45. Now verify: X/Y should equal 1.2: 54/45 = 6/5 which is 1.2.
A percent is a ratio of a number to 100. A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right.
The number 6
198 is.
3 and 6
The digit '4' is in the tenths place.
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.
A percent is a ratio of a number to 100. A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right.
198 is.
The number 6
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
3 and 6
The digit '4' is in the tenths place.
The two digit numbers in which the tens digit is five greater than the units digit are:5061728394The number we are looking for is ten times the sum of its digits, and so must be a multiple of 10. The only one of the above numbers which fits this is 50, as 5 is five greater than 0, and 50 = 10 x (5+0).
The largest two-digit number with exactly three factors is 99. A number has exactly three factors if it is the square of a prime number, specifically in the form ( p^2 ) where ( p ) is a prime. The only prime number whose square is a two-digit number is 7, since ( 7^2 = 49 ) and ( 11^2 = 121 ) exceeds two digits. Thus, 49 is the largest two-digit number with exactly three factors.
-- "The sum of a two-digit number" is unclear. I took it to mean"The sum of the digits of a two-digit number."-- "... the product ?" is unclear. Are you looking for the product of the two digits,or the product of the forward and backward numbers ?-- It's not possible to write a number whose two digits sum to 12 and whosereverse exceeds it by 25. The tens digit would have to be 4.611... and the unitsdigit would have to be 7.388... .Then(4.611...) + (7.388...) = 12(46.111...) + (7.388...) = 53.5(73.888...) + (4.611...) = 78.5Difference = 25So, the number can't be written, but ...The product of its two digits is 34.071 (rounded)The product of the forward and reverse numbers is 4,199.75 (rounded)
Multiply by 100. Example, 325 x 100 = 32,500 %
Even numbers are divisible by two, and half of all numbers are even, so there is a 50 percent chance that a four-digit number is divisible by two.