Question

A black board is 180 cm long 110 cm board . what will be the cost of painting it at the rate of 50 paise per square centimetre​

Answer 1

Answer:

rs. 9900

Step-by-step explanation:

area=l×b

=19800cm²

cost=19800×0.5

=Rs. 9900

Answer 2

The cost of painting the Black Board is 9,900 Rupees

1. To calculate the cost, first we need to calculate the area of the black board:
2. Area of blackboard =  180cm * 110cm = 19,800 cm^2
3. The cost of painting the black board is 50 paise/ cm^2 or 0.5 Rs/cm^2
4. Hence, the cost of painting the black board is = 19800cm^2 * 0.5 Rs/cm^2 = 9,900 Rs.