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Question

Q. In covering a distance of 30 km, Aleena takes 2 hours more than Kriti. If Aleena doubles her speed, then she would take 1 hour less than Kriti. Aleena's speed is:

Q. 30 किमी की दूरी तय करने में, एलीना को कृति से 2 घंटे अधिक लगते हैं।अगर एलीना अपनी गति दोगुनी कर ले, तो वह कृति से 1 घंटे कम समय लेगी।एलीना की गति है:

A

4 km/hr
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B

5 km/hr
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C

6 km/hr
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D

7 km/hr
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Solution

The correct option is B
5 km/hr
Let the speed of Aleena be x km/hr.
30x302x=3
Solving, x=5 km/hr

माना कि एलेना की गति x किमी / घंटा है।
30x302x=3
हल करने पर, x=5 किमी / घंटा

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