Question

solve fast!!!!!!!!!!!!!!!!!!​

Answer 1

Answer:

no. of bricks= area of lane /area of bricks

l of lane =180 m

b of lane =5m

l of bricks in m =0.2m

b of bricks in m=0.15m

no. of bricks = 180×5/0.2×0.15=675

cost of bricks 675 ×70/1000=30.375 ruppess

hope it's helpful mark as brainliest if right

Answer 2

YOUR ANSWER IS - RUPEES 2250

EXPLANATION:-

Given-

Length of the lane (l),

$= 180m = 180 \times 100cm = 18000cm$

Breadth of the lane (b),

$= 5m = 5 \times 100cm = 500cm$

Therefore area of the lane,

$= l \times b \\ = 18000cm \times 500cm \\ = 900000cm^{2}$

Also length of the bricks(q),

$= 20cm$

And breadth of the brick(r),

$= 15cm$

Therefore, area of each brick,

$=q \times r \\ = 20cm \times 15cm \\ = 300cm {}^{2}$

Now number of bricks required

=Area of the path/Area of each brick.

$= 900000cm {}^{2} \div 300cm {}^{2} \\ = 3000$

Also cost of paving thousand bricks =750 rupees.

Therefore cost of paving 3000 bricks,

$= 750 \times 3 \\ = 2250 \: rupees$

Therefore the total cost is 2250 rupees.

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