Question

its answer is 38,000 please tell me how ?

Answer 1

Answer:

₹3,800

Hope it helps

Step-by-step explanation:

Area of parallelogram = Base X Height

=10 X 4

=$40 cm ^{2}$

Total area of room

40 X 1000 =$40000 cm^{2}$

CM$^{2}$ to $DM^{2}$

= $400 dm^{2}$

Cost of polishing

=9.50 $dm^{2}$ X $400 dm^{2}$

₹3,800