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:

4 km/hr

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5 km/hr

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6 km/hr

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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.
$\frac{30}{x} - \frac{30}{2 x} = 3$
(By Doubling her speed, Aleena is able to save three hours.) Solving, $x = 5$ km/hr

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Q. 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:

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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:

The correct option is B 5 km/hrLet the speed of Aleena be x km/hr. 30x−302x=3 (By Doubling her speed, Aleena is able to save three hours.) Solving, x=5 km/hr

The correct option is B 5 km/hr
Let the speed of Aleena be $x$ km/hr.
$\frac{30}{x} - \frac{30}{2 x} = 3$
(By Doubling her speed, Aleena is able to save three hours.) Solving, $x = 5$ km/hr