Painting a well costs BDT. 50 per sq. m. If the 20m long wall has a width of 10m , how much would it cost to paint 7/10th of the wall?

Painting a well costs BDT. 50 per sq. m. If the 20m long wall has a width of 10m , how much would it cost to paint 7/10th of the wall?

• 5000 (Incorrect)
• 10000 (Incorrect)
• 8000 (Incorrect)
• 7000 (Correct)