+

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