Question

the sum of the digits of a certain three digit number is 12.If the hundreds digits is three times the tens digit,and the tens digit is one -half the ones digit,what is the number?

Answer 1

hope it helps................

Answer 2

Hy!!

Let ones digit be x.

Hence tens digit is equal to x/2 and hundreds digit = 3* tens digit no = 3* x/2..

At last,

Hundreds digit is 3x/2, tens digit is x/2 and ones digit be x.

According to ur question,

=) 3x/2 + x/2 + x = 12

=) 4x/2 + x = 12

=) 2x + x = 12

=) 3x = 12

=) x = 12/3

=) x = 4

Hence hundreds digit = 3* 4 / 2

= 6.

Tens digit = 4/2 = 2

and ones digit = 4..

So number is 624.

Hope it's helpful to u.