Answer:

We know that,

Total surface area of cuboid = 2 (lb+bh+

hl)

Surface area of given cuboid

= 2(27 x 8+8x1+27x1) = 502 cm²

Volume of cube = 27 x 8 x 1 = 216cm³

..Edge of the cube a= 216 = 6 cm

We know that,

Total surface area of cube = 6a²

Surface area of this cube = 6 x (6)² = 216

cm²

Hence, the difference of surface areas = 502 - 216 = 286 cm²

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Step-by-step explanation:

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Verified answer

Answer:

12 tea bags

Step-by-step explanation:

20 glasses takes 5 tea bags

So 1 glass will take 20/5

                                =0.25 tea bags

48 glasses = 48 x 0.25

                  = 12 tea bags

Therefore, Oleg will need 12 tea bags to make 48 glasses of tea for the party.