[" An ndigit numbers is a positive numbe...

[" An ndigit numbers is a positive number with exactly n dyits.Nine hundared distinct n-digit numbers are "],[" to be formed using orly the three digits "2,5" and "7" .The smallestvalue of for which this is possibe,is "],[[" (a) "6," (b) "7," (c) "8," (a) "9]]

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[" An ndigit numbers is a positive number with exactly n dyits.Nine hundared distinct n-digit numbers are "],[" to be formed using orly the three digits "2,5" and "7" .The smallestvalue of for which this is possibe,is "],[[" (a) "6," (b) "7," (c) "8," (a) "9]]

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