how many numbers are there in all , having :(a) 1-digit ------(b) 2digit----- (c) 3digit----
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Answer:
Step-by-step explanation:
since 9 is the highest 1 digit positive number. therefore 9 numbers are there having positive sign. therefore 99 numbers are there having positive sign in 2 digits. therefore 999 numbers are there having positive sign in 3 igits.
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Given; Numbers
To Find; how many numbers are there in all, having :(a) 1-digit ------(b) 2digit----- (c) 3digit----
Solution; One digit numbers are from one to nine.
Hence there are nine one-digit numbers
Two-digit numbers are from 10 to 99 is 90
Three-digit numbers are from 100 to 999 that is there are 900 numbers
Hence (a) 1-digit -9 (b) 2digit---90 (c) 3digit---900
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