Math, asked by aditikota, 11 months ago

who ever asked the question " A TWO DIGIT NUMBER IS 4 TIMES SUM OF ITS DIGIT.THE NUMBER IS 3 TIMES PRODUCT OF THE DIGITS.FIND THE NUMBER?" please send the link to the question in the comments or answer. I have the answer to the question but it took time so I lost the question because the app refreshed. please send it..
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Answers

Answered by nabafnazir5
0
A two digit positive integer can be expressed as 10x+y, where x is the tens digit and y is the ones digit.  For example, 37 = 3(10)+7.

 

So, 10x+y = 4(x+y)  and 10x+y = 3xy

 

10x+y = 4x+4y

 

      6x = 3y

 

        y = 2x

 

Since y = 2x and 10x+y = 3xy, we have 10x+2x=3x(2x)

 

                                                                12x = 6x2             6x2-12x = 0

 

                                                                                       6x(x-2) = 0   x = 0 or x = 2

 

                                                                                        Since x can't be zero, x = 2

 

                                                                                                                        y = 2x = 4

 

The number is 24.


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