Gladstone School bought 200 cartons of biscuits to sell for fundraising. Each carton contained 15 kg of biscuits.

Each packet of biscuits in a carton weighed 250 g.

(1000 g = 1 kg)

a)    How many kg of biscuits were there to sell? __________ kg
 

b)    How many packets of biscuits were there? __________ packets