366657 A body cools from \(80^{\circ} C\) to \(64^{\circ} C\) in \(5 \mathrm{~min}\) and same body cools from \(80^\circ C\) to \(52^\circ C\) in \(10 \mathrm{~min}\), what is the temperature of the surrounding?

366658 In a room where temperature is \({30^{\circ} {C}}\), a body cools from \({61^{\circ} {C}}\) to \({59^{\circ} {C}}\) in 4 minutes. The time taken by the body to cool from \({51^{\circ} {C}}\) to \({49^{\circ} {C}}\) under the same conditions would be

366659 Hot water cools from \(60^\circ C\) to \(50^\circ C\) in the first 10 minutes and to \(42^\circ C\) in the next 10 minutes. The temperature of the surroundings is:

366660 A cup of coffee cools from \(90^\circ C\) to \(80^\circ C\) in \(t\) minutes, when the room temperature is \(20^\circ C\). The time taken by a similar cup of coffee to cool from \(80^\circ C\) to \(60^\circ C\) at a room temperature same at \(20^\circ C\) is

366657 A body cools from \(80^{\circ} C\) to \(64^{\circ} C\) in \(5 \mathrm{~min}\) and same body cools from \(80^\circ C\) to \(52^\circ C\) in \(10 \mathrm{~min}\), what is the temperature of the surrounding?

366658 In a room where temperature is \({30^{\circ} {C}}\), a body cools from \({61^{\circ} {C}}\) to \({59^{\circ} {C}}\) in 4 minutes. The time taken by the body to cool from \({51^{\circ} {C}}\) to \({49^{\circ} {C}}\) under the same conditions would be

366659 Hot water cools from \(60^\circ C\) to \(50^\circ C\) in the first 10 minutes and to \(42^\circ C\) in the next 10 minutes. The temperature of the surroundings is:

366660 A cup of coffee cools from \(90^\circ C\) to \(80^\circ C\) in \(t\) minutes, when the room temperature is \(20^\circ C\). The time taken by a similar cup of coffee to cool from \(80^\circ C\) to \(60^\circ C\) at a room temperature same at \(20^\circ C\) is

366657 A body cools from \(80^{\circ} C\) to \(64^{\circ} C\) in \(5 \mathrm{~min}\) and same body cools from \(80^\circ C\) to \(52^\circ C\) in \(10 \mathrm{~min}\), what is the temperature of the surrounding?

366658 In a room where temperature is \({30^{\circ} {C}}\), a body cools from \({61^{\circ} {C}}\) to \({59^{\circ} {C}}\) in 4 minutes. The time taken by the body to cool from \({51^{\circ} {C}}\) to \({49^{\circ} {C}}\) under the same conditions would be

366659 Hot water cools from \(60^\circ C\) to \(50^\circ C\) in the first 10 minutes and to \(42^\circ C\) in the next 10 minutes. The temperature of the surroundings is:

366660 A cup of coffee cools from \(90^\circ C\) to \(80^\circ C\) in \(t\) minutes, when the room temperature is \(20^\circ C\). The time taken by a similar cup of coffee to cool from \(80^\circ C\) to \(60^\circ C\) at a room temperature same at \(20^\circ C\) is

366657 A body cools from \(80^{\circ} C\) to \(64^{\circ} C\) in \(5 \mathrm{~min}\) and same body cools from \(80^\circ C\) to \(52^\circ C\) in \(10 \mathrm{~min}\), what is the temperature of the surrounding?

366658 In a room where temperature is \({30^{\circ} {C}}\), a body cools from \({61^{\circ} {C}}\) to \({59^{\circ} {C}}\) in 4 minutes. The time taken by the body to cool from \({51^{\circ} {C}}\) to \({49^{\circ} {C}}\) under the same conditions would be

366659 Hot water cools from \(60^\circ C\) to \(50^\circ C\) in the first 10 minutes and to \(42^\circ C\) in the next 10 minutes. The temperature of the surroundings is:

366660 A cup of coffee cools from \(90^\circ C\) to \(80^\circ C\) in \(t\) minutes, when the room temperature is \(20^\circ C\). The time taken by a similar cup of coffee to cool from \(80^\circ C\) to \(60^\circ C\) at a room temperature same at \(20^\circ C\) is