Question

which of the following are invalid constants?Give reasons:

a.1000

b. -147.45

c. 5B

d. "INDIA"

e. "Rs. 99"

#please explain .​

Answer 1

c. 5B is correct answer

Explanation:

Types of constant in C language:

• Integer constants  : 1000, 345, -678

• Floating or real point constants  : 23.567, 78.98

• Octal and Hexadecimal constants  : 034, 0x78

• Character constants  : 'A' , 'c'

• String constants  : "INDIA" , "ab45", '56d"

• Backslash character constants

The following options are given:

a.  1000   is Integer constant

b. -147.45  is floating point constant

c.  5B  is invalid because it is neither integer nor string constant.A string is always written within double quotes("").

d. "INDIA" is string constant  

e. "Rs. 99" is string constant  

Answer 2

Answer:

flat kitchen owl FYI it ui