Question

6. The dimensions of an oil tin are 60cm x 35cm x 24
cm. Find the area of the tin sheet required for making
40 such tins. If 1sq. m of tin sheet costs Rs. 25. Find
the cost of tin sheet required for making 40 tins.​

Answer 1

the pic may help

answer is 935

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Answer 2

The area of the tin sheet required for making

40 such tins is 350400 cm².

The cost of tin sheet required for making 40 tins is Rs.8760.

Step-by-step explanation:

Given : The dimensions of an oil tin are 60 cm x 35 cm x 24  cm.

To Find : The area of the tin sheet required for making  40 such tins. If 1 sq. m of tin sheet costs Rs. 25 and find the cost of tin sheet required for making 40 tins ?

Solution :

The surface are of the cuboid is  $SA=2(lb+bh+hl)$

Here, l=60, b=35 and h=24

Substitute,

$SA=2(lb+bh+hl)$

$SA=2(60\times 35+35\times 24+24\times 60)$

$SA=2(2100+840+1440)$

$SA=2(4380)$

$SA=8760\ cm^2$

For 1 tin the area required is 8760 cm².

For 40 tin the area required is $8760\times 40=350400\ cm^2$

Convert into m²,

1 cm² = 0.0001 m²

$350400\ cm^2=350400\times 0.001=350.4\ m^2$

If 1 sq. m of tin sheet costs Rs. 25.

The cost of tin sheet required for making 40 tins is

$Cost=350.4\times 25$

$Cost=Rs.8760$

Therefore, the cost of tin sheet required for making 40 tins is Rs.8760.

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