Question

how much will it cost to cover the ground 80m long and 50m wide with sand at the rate of ₹20 per sq. metre​

Answer 1

$\large\sf\underline{Given:}$

• Length of the ground = 80 m

• Breadth of the ground = 50 m

• ‎Rate of covering 1sq.m ground with sand = Rs 20

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$\large\sf\underline{Understanding\:the\:question:}$

Here we are given the length of the ground as 80m and breadth as 50m so the ground must be rectangular in shape as length exceeds the breadth . Next we are given the cost to cover 1 sq. m of ground with sand as Rs 20 . We need to calculate the cost to cover the whole ground with sand. So firstly we must find the area of the ground and then the rate to cover the ground with sand . Let's begin !¡

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$\large\sf\underline{Solution:}$

We know ,

$\large{\mathfrak{⚠\:Area\:of\:the\:rectangular\:ground=l \times b}}$

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• Let's substitute the given value of length and breadth

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$\sf\implies\:Area\:of\:ground= 80 \times 50$

${\sf{{\green{\implies\:Area\:of\:ground= 4000\:sq\:m}}}}$

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And it's given that :

Cost of covering 1sq.m ground by sand = Rs 20

Therefore ,

Cost of covering 4000sq.m ground by sand

$\sf\:Rs\:(4000 \times 20)$

$\large{\mathfrak\purple{\implies\:Rs\:80000}}$

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!! Hope it helps !!