The temperature of a 150-g drinking glass decreased from 25°C to 14°C as 200 grams of water were added. Determine the original temperature of the water.
Hint: heat loss must equal heat gain.)

the product of the pressure and volume is also constant

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be