Question

The ten's digit of a 2 - digit number is 4 times of its one's digit If the sum of the digits is 5, what is the number?​

Answer 1

Answer:

41

Step-by-step explanation:

let the 2 digit number be 10x + y

x = 4y ... given ... (1)

x + y = 5 ... given ... (2)

(1)-(2)

-5y = -5

thus, y = 1

substitute y = 1 in (2), we get x = 4

therefore, 10x + y = 10(4) + (1) = 41