Question

Answer the Question in Attachment.​

Answer 1

$\huge{\underline{\mathfrak{Solution:}}}$




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

Length of Box = 1.5 m

Breadth of Box = 1.25 m

Height of Box = 0.65 m


$\sf{\large{\underline{\underline{Explanation \colon}}}}$

1.
Box is to be open at top.

Area of Sheet Required =
$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \implies \sf 2lh + 2bh + 2lb \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \implies \sf (2 \times 1.5 \times 0.65 + 2 \times 1.25 \times 0.65 + 2 \times 1.5 \times 1.25) \:{m}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \implies \sf (1.95 + 1.625 + 1.875 ) \: {m}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \implies \sf 5.45 \: {m}^{2}$

2.
Cost of Sheet Per m² Area = Rs. 20

Cost of Sheet 5.45 m² Area =
$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \implies \sf Rs. \: (5.45 \times 20 ) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \implies \sf Rs. \: 109$