एक ट्रेन द्वारा (x+1) घंटे में तय की गई ...

एक ट्रेन द्वारा `(x+1)` घंटे में तय की गई दूरी `(x^(3) +1)` km है। ट्रेन की चाल ज्ञात करें।

A

`x^(3)-1 km//h`

B

`x^(2)-x+1 km//h`

C

`x^(2) + x +1 km//h`

D

`(x+1) km//h`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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