Question

multiply 13 by 11 and multiple the product by 7. now multiply it by any 3 digit number. whats the answer ? what do you notice? does this happen always? ​

Answer 1

Step-by-step explanation:

ya really it's a magic

• 11×13=143
• 143×7=1001
• if we multiply any three digit number it's repeating twice
• let the three digit number be xyz

then the answer is xyz,xyz

• this always happens

Answer 2

Step-by-step explanation:

Let Us Do the ATQ first

$13 \times 11 = 143$

$\huge\underline\mathfrak{Now,}$

_____________________________________________

$143 \times 7 = 1001$

$\huge\underline\mathfrak{Now,}$

Taking 3 digit number(ANY) As 344

_____________________________________________

$1001 \times 344 = 344344$

$\huge\underline\mathfrak{Result}$

_____________________________________________

We observe that

The 3 digit number , any 3 digit number applicable with the given ATQ repeats continuously.

IF ANY DOUBTS,

Let us take another 3 digit number 413

$1001 \times 413 = 413413$

The result is always same.

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