Question

please answer FriEnDs​

Answer 1

Answer:

24

Step-by-step explanation:

Let, the tens place digit be x.

the units place digit be y.

Condition 1: x + y + 18 (1)

Condition 2: y = 2x (2)

A.T.Q.

10x + y = x + y + 18...........[From (1)]

10x + 2x = x + 2x + 18..........[From (2)]

12x = 3x + 18

12x - 3x = 18

9x = 18

x = 18

9

x = 2 (3)

y = 2x

= 2 × 2.........[From (3)]

= 4 (4)

Number = 10x + y

= 10(2) + 4............[From (3) and (4)]

= 20 + 4

= 24

Therefore, original number is 24.