Question

The length, breadth and height of a room are 6 m, 5 m and 3.5 m respectively. The cost of white washing the walls of the room and the ceiling at the rate of Rs 8 per sq. m. is Rs _________

Answer 1

Answer:

₹856 is the cost white washing the walls and ceiling of the room

Step-by-step explanation:

TSA of room=2(lb+bh+lh)-lb

= 2(6×5+5×3.5+6×3.5)-6×5

= 107m²

Hence, Cost of white washing 1 m² = ₹8

Therefore,Cost of white washing 105 m² = ₹8×107

= ₹856

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