1.

An engineer in the urban planning department of IIM Kashipur, situated near Jim Corbett National Park in Uttarakhand, wants to connect all the 25 buildings (blocks) mutually. Each road connects only one pair of blocks. No single road connects more than 2 blocks. The roads are designed in such a way that one can reach from one block to any other block through a sequence of roads laid out at thecampus. The number of roads (R) in the campus may satisfy the condition.

Answer»

`25 le R le 625`
`24 le R le 288`
`24 le R le 300`
`25 le R 225`

Answer :C


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