Question

in a two digit number the digit in units place is twice the digit in tens place if 27 is added to it digit are reversed find the number​

Answer 1

Answer:

given number is 36

Step-by-step explanation:

let the number be = 10x + y

ATQ

y = 2x ------(1)

10x + y + 27 = 10y + x

10y + x - 10x - y = 27

9y - 9x = 27

divide by 9

y - x = 3

put y = 2x

2x - x = 3

x = 3

put x in eq 1

y = 2x

y = 2 × 3

y = 6

the given number is = 10x + y

= 10× 3 + 6 = 30 + 6 = 36