Find the total pounds of waste shipped to China from a hundr

Find the total pounds of waste shipped to China from a hundred residences in a day. Solution: The waste from 80 households was shipped to china. Thus the total amount of waste shipped to China in a day is 13 Times 80 = 1040 pounds. Find the total pounds of waste from a hundred residences actually recycled in a day. Solution: The waste from 80 households was shipped to China, so the remaining households are 20. The half of the remainder was unrecyclable and the other half of the remainder was recycled, thus the waste from 10 households was recycled. Hence the amount of wasted recycled in a day is 13 Times 10 = 130 pounds. Ten years later, the similar pattern holds for the recycling company-they still collect e-waste from 100 residences every day, the waste from 80 of these is still sent to China, and only half of the remainder is recycled-but they collect more waste from each house, 25 pounds of waste is collected from each of 100 residences every day. Find the total pounds of waste collected from a hundred residences in a day. Find the total pounds of waste shipped to China from a hundred residences in a day. Find the total pounds of waste actually recycled from a hundred residences in a day (Justify your reasoning):

Solution

Ans. 1) According to the given situation :

The total pounds of waste collected from a 100 residences in a day is : 25 X 100 = 2500 pounds.

This is because 25 pounds waste is collected from each of the 100 residences in a day and thus by unitary method we got this answer that is -

1 residence contributes to 25 pounds

Thus 100 residences contribute to 25 X 100 = 2500 pounds

Ans. 2) Total pounds of waste shipped to China from a 100 residences in a day is : 25 X 80 = 2000 pounds

Ans. 3)Total pounds of waste actually recycled from a 100 residences in a day is : 25 X 10= 250 pounds,

Since the waste from 80 residences is sent to China and half of the rest (that is left over waste of 20 residences) is recycled and here the half of 20 is 10 and hence the above mentioned calculation follows up with the answer.