vol of cone= volume of spheres*x

i.e 

1/3πr²h=1/4πr^3*x 

pie pie get cancled

1/3r²h=1/4r^3*x

1/3(5*5-8)=1/4(0.5*0.5*0.5)*x

x=(1/3(5*5-8)) / (1/4(0.5*0.5*0.5))

x is number of cones

Barium Chloride

its platinum

it is both exocrine and endocrine gland as

Exocrine- Secrets Pancreatic Juice

Endocrine- Secrets Harmones(insulin,glucogon&somatostatin)