Question

a number consists of 2 digits.The digit in tens place is twice the digit in the units place.if 27 be subtracted from the number,the digits are reversed.Find the number...plz help​

Answer 1

Answer:

63

Step-by-step explanation:

let the two digit no. be 10x+y.

"the tenth place is 2 times the digit in the unit place "

x=2y

if 27 is substracted from the number the digit are reversed.

10x+y-27=10y+x

10x-x=10y-y+27

9x=9y-27

simplify divide by 9.

x=y+3

replace x=2y

2y=y+3

y=3

then ,

x=2(3)

=6.

therefore, 63 is the number.

check solution in the statement:

"If 27 is substracted from the number the digit are reversed "

=63-27

=36.

hope it helps.....

# Aniket ✌️

Answer 2

Answer:

63 is your answer

Step-by-step explanation: