Question

the tens digit of a number is three times the units digit . The sum of the number and its unit digit is 32 . Find the number​

Answer 1

Answer:

Step-by-step explanation:

Let the tens digit be x and units digit be y. So, the number is 10x+y. x=3y (given)...........(eq.1) 10x+y+y=32 (given) Substituting the value of x from eq. 1, 10(3y)+y+y=32 30y+y+y=32 32y=32 y=1 So, x=3y=3×1=3 Hence , the number is 31