Question

if the square of a number of two digits is decreased by the square of the number formed by reversing the digits,,then the result is not always divisible by???

Answer 1

Answer:

Step-by-step explanation:

step 1

ROI=6%

3500x6/100=180(1 year ROI)

Step 2

4130-3500=630

Step 3

180x3=540(3 year ROI)

630-540=90(6month ROI)

Last step

(3 year ROI + 6 month ROI)

540+90=630

3500+630=4130

Ans.=

3year 6 month

I

Answer 2

Answer:the result is always divisible by 11.

Step-by-step explanation: suppose we take 21 and 12

The square of 21 is 441 and the square of 12 is 144.

And if we subtract. =441-144. =297

It is seen that the result is divisible by 11

Now 1 more example let we take 15 and 51

The square of 15 is 225 and the square of 51 is 2601.

And if we subtract =225-2601. =-2376

It is seen that the result is divisible by 11