Question

the ones digit of a 3 digit number is three times the hundreds digit and the tens digit is four times the hundreds digit. The sum of the digits of the number is 16. Find the number.

Answer 1

the sum of 3 digit no is 16
x+4x+3x=16
8x=16
x=16/8
x=2
so the no will be
x+4x+3x
2+8+6
286 is the ans

Answer 2

let the number be x, y, z .

y value is 4× x

z value is 3× x

x+y+z =16

x+4x+ 3x =16

x+ 7x = 16

8x = 16

x= 16/8 =2

y= 4×2=8

z=3×2=6

=286 ans.