Question

the digit at the tens place is 5 less than twice the digit at unit place. The sum of the original number and the number obtained by interchanging the digits is 176 find two digit the numbers

Answer 1

Answer:

176

Step-by-step explanation:

Hello My Dear Friend

let the unit digit be  x

∴the tens digit is 2x-5

∴the nos is 10*[2x-5] +x =20x-50+x =[21x -50] ..............................[1]

⇒now by interchanging the digits we get

⇒tens digit is x   and    unit digit is [2x-5]

∴the new nos becomes  10*x+[2x-5]  =10x+[2x-5]  =[10x +2x-5]  =[12x -52].......[2]

ATP

⇒[21x -50]+[12x -5]  =176

⇒21x+12x -50 -5 =176

⇒33x-55 =176

⇒33x=176+55

⇒33x=231

⇒x=231/33  =7 ==========units place nos

∴the tens digit is   2x-5 =2*7-5 = 14-5 =9

∴the nos is  97 ans

proof  97  +79  =176

Answer 2

Answer:

Step-by-step explanation: