Question

Math question, please help me to solve





A number has two digits whose is 14. If 36 is added to the number, its digits are
interchanged. The number is
(a) 68
(b) 95
(c) 86
(d) 59​

Answer 1

Answer:

b) 59.

Step-by-step explanation:

let 10x + y be the number.

x + y = 14

y= 14- x

10x+ y +36 = 10 y + x

10 x +(14-x)+36=10(14-x)+x

10 x + 14 - x +36= 140 -10 x + x

9 x + 50 = 140- 9 x

9 x + 9 x =140- 50

18 x = 90

x= 90/18

x = 5

thus,

y = 14 - 5

= 9

therefore number is 59.

(Assuming: that the sum of digits is 14, as the question is not complete.)

and 59 + 36 = 95.