5 ms·
Since you scratched off the last digit, 10 is really 100, plus 5 for the digit you scratched off = 105. 105 is a multiple of 21.
by chadzawistowski 11y ago
Since you scratched off the last digit, 10 is really 100, plus 5 for the digit you scratched off = 105.
105 is a multiple of 21.