Question

which of the following are valid variable name in C ++? 1)income 2)total marks 3)double 4) average _score 5) class room # 6) _area 7) no _of _students 8) long 9) item 10) My. School 11) Max speed 12) 2nd try 13) $ cost ​

Answer 1

1,2,8,9,11,12
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