๐ช๐๐ฌ ๐ฑ๐ผ ๐๐ป๐ฑ๐ถ๐ฎ๐ป ๐บ๐ผ๐ฏ๐ถ๐น๐ฒ ๐ป๐๐บ๐ฏ๐ฒ๐ฟ๐ ๐ต๐ฎ๐๐ฒ ๐ญ๐ฌ ๐ฑ๐ถ๐ด๐ถ๐๐❓
๐ช๐๐ฌ ๐ฑ๐ผ ๐๐ป๐ฑ๐ถ๐ฎ๐ป ๐บ๐ผ๐ฏ๐ถ๐น๐ฒ ๐ป๐๐บ๐ฏ๐ฒ๐ฟ๐ ๐ต๐ฎ๐๐ฒ ๐ญ๐ฌ ๐ฑ๐ถ๐ด๐ถ๐๐❓
✅Imagine that you have 2 cards and 2 envelopes—2 are blue and 2 are yellow. Now, how many possible ways can you arrange them in a pair?
Blue card-Yellow card, Blue card-blue envelope, Blue envelope-yellow envelope, blue envelope-blue card; 4 ways.
The same logic can be applied for the number of digits that mobile numbers have.
➼Going back to Permutations and Combinations, how many single-digit numbers do we know? 10.
Thus, if phone numbers were to have 2 digits, how many different number combinations would be available? 10 x 10 = 100.
In the same fashion, if phone numbers were to have 9 digits, this would only satisfy 1,000 million (100 crore) subscribers.
Hence, the 10-digit mobile number. This offers us 10 billion (1000 crore) different combinations, and as for the global population, it is highly unlikely to exceed this capacity.
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