An object kept in a large room having air temperature of \( 25^{\circ} \mathrm{C} \) takes 12 mi...

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An object kept in a large room having air temperature of \( 25^{\circ} \mathrm{C} \) takes 12 min to cool from \( 80^{\circ} \mathrm{C} \) to \( 70^{\circ} \mathrm{C} \).
The time taken to cool for the same object from \( 70^{\circ} \mathrm{C} \) to \( 60^{\circ} \mathrm{C} \) would be nearly
(a) \( 10 \mathrm{~min} \)
(b) \( 12 \mathrm{~min} \)
(c) \( 20 \mathrm{~min} \)
(d) \( 15 \mathrm{~min} \)
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