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Find the number of numbers less than 200...

Find the number of numbers less than 2000 that can be formed using the digits, 1,2,3,4 if repetition is allowed.

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The correct Answer is:
`=4+169+64+64=148`
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-PERMUTATIONS AND COMBINATIONS-TAXTUAL EXERCISES
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  2. Find the number of 5 - digit numbers divisible by 5 that can be formed...

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  3. Find the number of numbers less than 2000 that can be formed using the...

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  4. 9 Different letters of an alphabet are given. Find the number of 4 let...

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  5. Find the number of 4 - digit numbers which can be formed using the dig...

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  6. The number of 4 digited numbers that can be formed using the digits {0...

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  7. Find the number of ways of arranging 7 persons around a circle.

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  8. Find the number of ways of arranging the chief minister and 10 cabinet...

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  12. Find the numberof ways of preparing a garland with 3 yellow, 4 white a...

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  13. Find the number of ways of arranging 6 boys and 6 girls around a circu...

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  14. Find the number of ways of arranging 6 red roses and 3 yellow roses of...

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  15. A round table conference is attended by 3 Indains, 3 Chinese, 3 Canadi...

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  18. Find the number of 7 - digit numbers that can be formed using 2,2,2,3,...

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