y=(int)(x+0.5)

y=int(x+0.5)

y=(int)x+0.5

y=(int)(int)x+0.5)

A float

A double

A long double

Depend upon memory model that you are using

printf("%f%f",a,b);

printf("%Lf%f",a,b);

printf("%Lf%Lf",a,b);

printf("%f%Lf",a,b);

Rounding takes place

Truncation takes place

The lower order bits are dropped

None of these

sqrt((double)i)

(double)sqrt(i)?

(double)(sqrt(i))

sqrt(i)