Question

solve pls ill mark as brainliest answer ​

Answer 1

Answer:

I think dout has clarified

thanks....

..

Answer 2

Answer:

The number is 12.

Step-by-step explanation:

Let,

The ones place digit of a two digit number be x

The tens place digit of a two digit number be y

So, the number = x + 10y

By reversing the order of the digits the number becomes = y + 10x

According to first condition,

7 (x+10y) = 4 (y+10x)

or, 7x+70y = 4y+40x

or, 33x-66y = 0

or, 33 (x-2y) = 0

or, x-2y = 0 ------1️⃣

According to second condition,

x+y = 3 ------2️⃣

Subtracting equation 2️⃣ from equation 1️⃣ we get,

x - 2y = 0

x + y = 3

(-) (-) (-)

---------------

-3y = -3

or, y = 1

Putting the value of y in equation 2️⃣ we get,

x+1 = 3

or, x = 3-1

or, x = 2

So, The number = 2+(10×1)

= 2+10

= 12