IDNStudy.com, ang iyong destinasyon para sa mga sagot ng eksperto. Tuklasin ang mga kumpletong sagot sa iyong mga tanong mula sa aming komunidad ng mga eksperto.

the sum of the digit of a two digit number is 12. the value of the number is 6 times the unit digit. find the number.


Sagot :

the first number will be 12/7 and the second will be 10 2/7 
the equation goes like this.. x+6x=12 
If you mean the ones digit, I have found the answer after how many times. First, divide 12 by 2. (Warning! I am just a Grade 7 student and I don't know how to solve this problem with shortcuts so I am answering this question by trial and error.)
6 is the answer so that means.
6+6=12
(6+1)+ 6-1) = 12 or 7+5=12
8+4=12
9+3=12
Question; What are the digits made by combining these numbers?
Answers:
66      93   48
75      39
57      84
Try these numbers.
Ex. 66=6x6
     66=36, False
Ex.   75=5x6          
        75=30, False
Ex. 57=7x6
      57=42. False
Ex. 93=3x6
      93=18,False
Ex. 39=9x6
      39=54,False
Ex. 84=4x6
      84=24, False
Ex. 48=8x6
      48=48, True!!!
Therefore, my answer is 48! Check 4+8=12
8x6=48
So 48 is my answer!


10+2=12(not included: this is not included because it will make a 3 digit number once the digits will be together.)