one of the two digits of a two digits is three times the other digits If you interchange the digits of this two digit number and add the result number to the original number, you got 88 what is the original number
Answers
let 3y=x
on interchanging,
10y+x+10x+y=88
11x+11y=88
11(3y)+11y=88
44y=88
y=88/44
y=22
3y=x
3*22=x
66=x
Original number=10x+y
10*66+22=680--ans.
One of the two digits of a two digit number is three times the other digit.
If you interchange the digits of this two-digit number and add the resulting number to the original number, you get 88.
The Number
Let the digits at tens place be x.
And ones place be 3x .
Original Number = 10x + 3x = 13x
Number after interchanging = 10 × 3x + x = 30x + x = 31x
⇒ Original number + New number = 88
⇒ 13x + 31x = 88
⇒ 44x = 88
⇒ x = 88/44
⇒ x = 2
Original Number = 13x = 13 × 2 = 26
Therefore, by considering the tens place and ones place as 3x and x.
Therefore, by considering the tens place and ones place as 3x and x.The two digit number obtained is 62.
Therefore, by considering the tens place and ones place as 3x and x.The two digit number obtained is 62.Hence, the two-digit number may be 26 or 62.
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