How many different zip codes are there
Asked by maham237 @ in Social Studies viewed by 297 People
How many different Zip Codes are possible using the old style (five digits) and the new style (nine digits)?
Asked by maham237 @ in Social Studies viewed by 297 People
How many different Zip Codes are possible using the old style (five digits) and the new style (nine digits)?
Answered by maham237 @
Answer:
old style (five digits)
Solution: 10×10×10×10×10=105
the new style (nine digits)
Solution: 10×10×10×10×10×10×10×10×10=109 the old style if it cannot start with a zero
Solution: 9×10×10×10×10=9×104 =90,000
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