Asked by Aarav
l am two digit number. My tens digit is double of my ones digit .The sum of my digit is nine?
Answers
Answered by
Bosnian
Let the digits be a, and b.
Your number is x.
x = 10 a + b
My tens digit is double of my ones digit means:
a = 2 b
Now:
The sum of my digit is nine means:
a + b = 9
Replace a with 2 b in this equation.
2 b + b = 9
3 b = 9
b = 9 / 3
b = 3
a = 2 b = 2 ∙ 3 = 6
x = 10 a + b
x = 10 ∙ 6 + 3 = 60 + 3 = 63
Your number is 63
Your number is x.
x = 10 a + b
My tens digit is double of my ones digit means:
a = 2 b
Now:
The sum of my digit is nine means:
a + b = 9
Replace a with 2 b in this equation.
2 b + b = 9
3 b = 9
b = 9 / 3
b = 3
a = 2 b = 2 ∙ 3 = 6
x = 10 a + b
x = 10 ∙ 6 + 3 = 60 + 3 = 63
Your number is 63
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