Question

The ones place digit in a three digit number is two times the digit in the tens place the digit in the hundreds place is three times the digit in the tens place the average of the three digit is for 4

Answer 1

Answer: 624

Step-by-step explanation:

Let digit in ten's place be x. Then digit in one's place would be 2x. And hundred's place would be 3x. Avg = 4

 Avg = [2x + 3x + x]/3

 4= 6x/3

  4/2 = x

 x = 2

 The number is 624

Answer 2

Answer:

624

Step-by-step explanation:

let the three digit number be xyz

According to given conditions

z=2y

x=3y

and Avg. of xyz = 4

then (x+y+z)/3=4. [because we r doing Avg of three numbers that why divided by 3]

x+y+z=12

according to given conditions x=3y,z=2y put these values in x+y+z=12

then 3y+y+2y=12

6y=12

y=2

put y =2 in x=3y and z=2y

then x=3(2)=6

z=2(2)=4

then the required three number is xyz=624

proof:- given Avg. of three digits=4

then (6+2+4)/3=12/3=4

hence prooved the number we got as answer was right.