Original apple: 200 g, 85% water.

• Mass of water = 0.85 × 200 = 170 g
• Mass of non-water (solids) = 200 − 170 = 30 g

Water content decreased by 10% (of the water mass):
• New water mass = 170 × 0.90 = 153 g
• Solids unchanged = 30 g
• New total mass = 153 + 30 = 183 g

Check: Water loss = 17 g. 200 − 17 = 183. ✓

Final Answer: 183