Question

The sum of the digits of a two digit number is 12 . the number obtained by interchanging the two digits exceeds the given number by 18 . find the number ? urgent

Answer 1

Let us assume x and y are the two digits of the number

Therefore, two-digit number is = 10x + y

Given:

x + y = 12

y = 12 – x -----------1

Also given:

10y + x -10x – y = 18

9y – 9x = 18

y – x = 2 -------------2

Substitute the value of y from eqn 1 in eqn 2

12 – x – x = 2

12 – 2x = 2

2x = 10

x = 5

Therefore, y = 12 – x = 12 – 5 = 7

Therefore, the two-digit number is 10x + y = (10*5) + 7 = 57

Answer 2

Answer:

Step-by-step explanation:

Let's Numerator is x and denominator is y

The fraction is as x/y

Given that,.

Y = x + 11

Y -x = 1______ (i)

Also given as,.

X + 8/y+ 8 = 3/4

4(x+8) = 3(y+8)

4x+32 = 3y + 24

3y - 4x =8 ________(ii)

Multiple by 3 in equatiot (i)

3y-3x =33_____(iii)

Subtract equation (ii) from equation (III)

X = 25

Therefore, y= x+11

= 25+11

= 36

Therefore, fraction is = 25/36 ANSWER IS 25/36

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