Question

If the one place number of a 2- digit number is "x". The ten place number is 3 times of x . Then write the number

Answer 1

Answer:

The possible numbers are 31, 62, 93.

Step-by-step explanation:

Let's say the number is 10y + x,

So,

Ones digit is x and tens place as y.

But given,

y = 3x

So,

The number is 10(3x) + x

= 30x + x

Now,

Is the important part, we know that, 30x + x is a 2 digit number.

Let's take x = 0

Number = 30(0) + 0 = 0

Let's take x = 1

Number = 30(1) + 1 = 31

Let's take x = 2

Number = 30(2) + 2 = 62

Let's take x = 3

Number = 30(3) + 3 = 93

Let's take x = 4

Number = 30(4) + 4 = 124

Hence,

We see that,

0 < x < 4, when x is a natural number, only then will we get a 2 digit number.

Which means x = 1, 2, 3

So,

The possible numbers are 31, 62, 93.

Hope it helped and believing you understood it........All the best