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A cake as shown has three layers , each ...

A cake as shown has three layers , each of which is a cuboid as shown. The bases of these cuboids are squares whose sides are of lengths 15 cm, 30 cm and 45 cm cm. The height of each layer is 5 cm. Find the total area of the cake that must be frosted. Assume that there will be frosting between the layers, but not at the bottom of the cake.

A

`5000" cm"^(2)`

B

`4000" cm"^(2)`

C

`4950" cm"^(2)`

D

`4500" cm"^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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S CHAND IIT JEE FOUNDATION-VOLUME AND SURFACE AREA -Section A (Question Bank - 27)
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  10. A, B, C denote the areas of three co-terminus faces of a cuboid. If P ...

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  12. A metallic sheet is of the rectangular shape with dimensions 48 c m...

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  14. A cube having each side of unit length is cut into two parts by plane ...

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  15. A cuboid is formed of 3 edges measuring 3,4 and 5 cm. It is sliced int...

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  16. A square hole of cross - sectional area 4" cm"^(2) is drilled across a...

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  17. The area of a side of a box is 120 sq. cm. The area of the other side ...

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  19. Water in a rectangular reservoir having base 80m by 60m is 6.5m dee...

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  20. A cake as shown has three layers , each of which is a cuboid as shown....

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