A) \[70{}^\circ C\]
B) \[80{}^\circ C\]
C) \[60{}^\circ C\]
D) \[50{}^\circ C\]
Correct Answer: D
Solution :
Let final temperature of water be \[\theta \] |
Heat taken = Heat given |
\[110\times 1(\theta -10)+10(\theta -10)=220\times 1\,(70-\theta )\] |
\[\Rightarrow \,\,\,\theta =48.8{}^\circ C\approx \,\,50{}^\circ C\] |
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