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Find the missing didgit in the number 17_614,given that the number is divisible by 11 |
Answer» <html><body><p>Take the alternating sum of the <a href="https://interviewquestions.tuteehub.com/tag/digits-953961" style="font-weight:bold;" target="_blank" title="Click to know more about DIGITS">DIGITS</a> in the <a href="https://interviewquestions.tuteehub.com/tag/number-582134" style="font-weight:bold;" target="_blank" title="Click to know more about NUMBER">NUMBER</a>, <a href="https://interviewquestions.tuteehub.com/tag/read-619994" style="font-weight:bold;" target="_blank" title="Click to know more about READ">READ</a> from <a href="https://interviewquestions.tuteehub.com/tag/left-1070879" style="font-weight:bold;" target="_blank" title="Click to know more about LEFT">LEFT</a> to right. If that is divisible by 11, so is the original number. So, for iñstance, 2728 has alternating sum of digits 2 – 7 + 2 – <a href="https://interviewquestions.tuteehub.com/tag/8-336412" style="font-weight:bold;" target="_blank" title="Click to know more about 8">8</a> = -11. Since -11 is divisible by 11, so is 2728.</p></body></html> | |