Question

in two digit number digit at the tens place is twice the digit at units place if the number obtained by interchanging the digits is added to the original number the sum is 66 find the number ​

Answer 1

Answer:

Step-by-step explanation:

Let the number be jk

One's place digit is j and tens place digit is k

a.c.p

j = 2k

By inter changing the nuber it wil become kj

Let j = 2 : k = 4

jk = 24

By interchanging the number is

kj = 42

jk + kj = 24 + 42 = 66

Hence proved