Question

4 parcels have the estimated mean of 400kg, when the fifth parcel is added the estimated mean is 500kg. What is the weight of the fifth parcel

Answer 1

Multiply the number of packages by the mean. Then subtract the two totals:

400 x 4 = 1600

500 x 5 = 2500

weight of 5th package = 2500 - 1600 = 900kg

answer: 900 kg