Concept:Units conversion is key: 1 litre = 1000 millilitres, 1 centimetre = 10 millimetres, 1 rupee = 100 paise, and 1 dozen = 12 items.
Explanation:Check each option for correctness.
Option A: Two and a half dozen = 2.5 × 12 = 30. Correct.
Option B: 5 litres 50 millilitres = (5 × 1000) + 50 = 5000 + 50 = 5050 millilitres, not 550. Therefore, this statement is false.
Option C: Since 1 cm = 10 mm, dividing gives 1 mm = 0.1 cm. Correct.
Option D: 100 paise = ₹1, so 10 paise = ₹0.10. Correct.
Only option B is incorrect.
Answer:Option B:
5 litres
50 millilitres =
550 millilitres is not correct.