The number 7 is considered special and either lucky or unlucky because it combines the symbolic meanings of the numbers 3 and 4.Select one:TrueFalse

How many 3-digit numbers having at least one of their digits 7

How many three digit numbers are there divisible by 7

The truth value of ‘4+3=7 or 5 is not prime’.ans.may be true may be falseFalseCan't determineTrue Previous Marked for Review Next

string lucky7s( string s );- Returns a string where repeated matching characters in the value s get separated by the string "77".  You can assume that the input string s will not have any 7's in it.

The number of different seven-digit numbers that can be written using only the three digit 1 , 2 and 3 with the condition that the digit 2 occurs twice in each number is7C2257p2257C252None of these