Question

pls help me with this . iwill mark it as brainliest answer.​

Answer 1

Answer:

B. 48, ₹ 1680

Step-by-step explanation:

Area of floor = I × b = 200cm × 150cm = 30000cm^2

Area of one tile = a^2 = 25cm×25cm=625cm^2

No. of tiles = 30000 ÷ 625 = 48 tiles

Cost of tiles @ of 420/dozen = 420 × 48/12 = 1680

Answer 2

Answer:

area of floor = 200 × 150 = 30000cm

area of tiles = 25 × 25 = 625 cm

No. of tiles = 625 ÷ 30000 = 48

Hence no. of tiles required to cover the floor is 48

Cost of tiles at ₹420 per dozen = 420 × 48/12 = 420 × 4 = 1680

Hence the cost of tiles at ₹420 pre dozen is ₹1680

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