+
35
+
75)×80%
=
128 (yuan)
2、 1500×( 1
+
20%)
=
1800 (kg)
3. How many degrees less electricity is used this month than last month? 200 ×
20%
=
40 degrees
4. After selling 1/5, there are apples left.
1800( 1
-
1/5)
=
1440 (kg)
Therefore, the weight of pears is
1440÷60%
=
2400 kg