Question

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Answer 1

Answer:

2 ans =

Let the smaller number =x.

greater number =3x.

The new number after adding =3.

To the smaller number =x+3.

Equation: 3x-(x+3)=31.

3x-(x+3)=31.

3x+-x-3=31.

3x-x-3=31.

2x-3=31.

2x=31+3.

2x=34.

x=34/2

=17.

Smaller number (x) =17 .

Greater number (3x) =3x17.

=51 is the answer.

3 ans = Let the ones digit =x.

Sum of digit =14.

Tens digit =(14-x).

The original number =10(14-x)+x x 1.

=140-10+x.

140-9x.

New number after reversing the digit =10xx+(1x14-x).

10x+14-x.

9x+14.

Equation =9x+14+18=140-9x.

9x+14+18=140-9x.

9x+32=140-9x.

9x+9x=140-32.

19x=108.

x=108/8.

One's digit =6.

Ten's digit =14-x.

14-6.

8.

original number =86.