Question

solve this question if you are a brilliant guy

Answer 1

$<b><u><i>Here Is Your Answer</i></u></b>$



$<b>The answer to the question is ‘26′ or ‘62′.</b>$



$<b>Let a digit be x (no matter units place or tens digit place) the the other digit will be 3x. Since 3x has to be a single-digit non-zero no. so x can only be either 1,2 or 3.</b>$



$<b>So the no. is (let it be ‘a’) a= x _3x (Now assuming x to be tens digit..You can also take it as units digit).</b>$



$<b>Then according to the question:</b>$



$<b>interchanged no. (let it be ‘b’) b= 3x_x.</b>$



$<b>now,</b>$



$<b>a+b=88 ……..(Given)</b>$



$<b>Since x can only be 1,2 or 3.</b>$



$<b>so addition would take no carry on.</b>$



$<b>so a+b=4x_4x=88.</b>$



$<b>comparing both places:</b>$



$<b>4x=8</b>$



$<b>and 4x=8.</b>$



$<b>(both equations are same)</b>$



$<b>so x=2.</b>$



$<b>So no. is either 26 or 62.</b>$



$<b>You can also see a=10*x+3x=13x</b>$



$<b>(As a 2-digit no. is of the form 10a+b,where both a,b are single digit no.s ‘a’ not equal to 0. )</b>$



$<b>similarly b=10*3x+x=31x</b>$



$<b>a+b=44x=88.</b>$



$<b>x=2.</b>$



$<b>so a=26 (or 62 according to what you have taken as tens digit.)</b>$



$<b>THANK YOU.</b>$




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