Question

A hall is 15m long,10m board,and 4m high.Find the cost of cementing its walls
and ceiling at the rate of Rs 8.50 per sq metre.

Answer 1

Step-by-step explanation:

area for cementing = LSA + are of ceiling

2h(l+b) + l × b

2 × 4 ( 15+10) + 15× 10

8 ( 25 ) + 150

350m²

cost of cementing mer m² is rupees 8.50

cost of cementing 350m² is 350× 8.50 =rupees 2975

please mark it as brainliest

please follow