Question

answer it fast!!
plz be perfect with ur answer​

Answer 1

Answer

43

solution

Let the original number be = 10x + you

sum of the digit = x + y = 7 [Given] ..... (1)

The number is reversed then number will be

10y + x

If the number with the order of digits

reversed is 28 greater than twice the

unit digit of original number [Given]

=> 10y + x = 2y + 28

=> 8y + x = 28 ...... (2)

From equation (1) and (2) we get

=> -7y = -21

=> y = 3

put y = 3 in equation (1) we get

=> x + 3 = 7

=> x = 4

then, original number be = 10x + y

=> 10 (4) + (3)

=> 43 = answer