Comprehension Passage
Directions: The following pie chart shows the degree / percentage distribution of the usage of electricity (Number of units) in six different houses A, B, C, D, E and F in a month of May .
Total number of units consumed = 4000

Note :
1)If the usage of the number of units in each house is below 500 the cost per unit is Rs. 30.
2) If the usage of the number of units in each house is above 500 the cost per unit is Rs. 40.
In the month of June, usage in house B is 33.33% of the previous month and usage in house D is 25% of the previous month. If the usage is less than 400 units the cost per unit is Rs. 25.Find the total amount spent by house B and D in the month of June.
1
Rs. 8000
2
Rs.11000
3
Rs. 10000
4
Rs. 8500
5
Rs. 9500