A box full of packets of biscuits each weighing 200 g weighs 12 1/2 kg.The empty box weighs 2 kg 500 g. calculate the number of packets of biscuits in the box.
Weight of all packets
= 12.5 kg - 2.5 kg = 10 kg = 10000g
each packet weight 200 g
number of packets = 10000/200 = 50
To calculate the number of packets of biscuits in the box, we need to determine the weight of only the biscuits.
First, let's find the weight of the biscuits alone by subtracting the weight of the empty box from the total weight of the box with the biscuits:
Total weight of the box = Weight of biscuits + Weight of the empty box
Given: Total weight of the box = 12 1/2 kg = 12.5 kg
Empty box weight = 2 kg 500 g = 2.5 kg
Weight of biscuits = Total weight of the box - Weight of the empty box
Weight of biscuits = 12.5 kg - 2.5 kg
Weight of biscuits = 10 kg
Now that we know the total weight of the biscuits is 10 kg, and each packet of biscuits weighs 200 g, we can calculate the number of packets by dividing the weight of the biscuits by the weight of each packet:
Number of packets = Weight of biscuits / Weight of each packet
Number of packets = 10 kg / 0.2 kg (since 200 g = 0.2 kg)
Number of packets = 50 packets
Therefore, there are 50 packets of biscuits in the box.