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A 9cm solid metallic cube and a solid me...

A 9cm solid metallic cube and a solid metallic cuboid having dimensions 5 cm, 13cm, 31cm are melted and recast into a single cube. How much (in Rs.) is the cost to polish the new cube at the rate of Rs.10 per `cm^2`
5 सेमी, 13 सेमी, 31 सेमी आयाम वाले घनाभ और 9 सेमी ठोस धातु घन को पिघलाया जाता है और एक ही घन में पुनर्गठित किया जाता है। Rs.10 प्रति `cm^2` की दर से नए घन को पॉलिश करने की लागत क्या होगी

A

13620

B

11760

C

8650

D

27440

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