alleryStart learning →A rope is 3 km long. What is its length in metres?
- 300 m
- 3000 m
- 30 m
- 30000 m
Show answer and solution
Correct answer: B. 3000 m
Kilo means 1000, so 3 km is 3 x 1000 = 3000 m.
Olympiad (Class 5) Conversion of Units — practice questions
Explore 61 free Conversion of Units questions in Olympiad (Class 5) Mathematics. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–30 of 61.
A rope is 3 km long. What is its length in metres?Read the answer and worked solution →A shopkeeper sells 5 kg of rice. How many grams is that?Read the answer and worked solution →A parcel has a mass of 2500 g. What is its mass in kilograms?Read the answer and worked solution →A water tank holds 4 litres. How many millilitres is this?Read the answer and worked solution →Ravi walks 1 km 250 m in the morning and 750 m in the evening. How far does he walk in all?Read the answer and worked solution →A jug had 5 L 500 mL of juice. Then 2 L 250 mL was poured out. How much juice is left?Read the answer and worked solution →A 2 m long ribbon is cut into pieces of 25 cm each. How many pieces are made?Read the answer and worked solution →A litre of cold water has a mass of about 1 kg. A bucket holds 12 L of water. About how many grams is the water?Read the answer and worked solution →1 mL of water has a mass of 1 g. What is the mass of 500 mL of water?Read the answer and worked solution →How many days are there in 3 weeks?Read the answer and worked solution →A fortnight is a period of how many days?Read the answer and worked solution →A camp lasted 2 fortnights and 3 days. For how many days did it last?Read the answer and worked solution →A train journey lasts 2 days 6 hours. How many hours is that?Read the answer and worked solution →A film is 3 hours 45 minutes long. How many minutes is that?Read the answer and worked solution →A runner finishes a race in 2 minutes 30 seconds. How many seconds is that?Read the answer and worked solution →A quarter of a day is how many minutes?Read the answer and worked solution →A lustrum is a period of five years. How many years are there in 3 lustrums?Read the answer and worked solution →An old time unit called an Olympiad lasts four years. How many Olympiads fit in 20 years?Read the answer and worked solution →How many years are there in 2 centuries and 3 decades?Read the answer and worked solution →How many centuries make up one millennium?Read the answer and worked solution →If every month had 28 days, a year would have 12 x 28 = 336 days. How many days short of 365 is that?Read the answer and worked solution →A year has 365 days. It equals 52 full weeks and how many extra days?Read the answer and worked solution →Water at 25 degrees Celsius is heated until it boils at sea level. By how many degrees does it rise?Read the answer and worked solution →At sea level, water freezes at about what temperature in degrees Celsius?Read the answer and worked solution →A dining tabletop is about 0.75 m high. What is this height in centimetres?Read the answer and worked solution →A very tall person is about 2 m tall. A child is 1.2 m tall. How many centimetres shorter is the child?Read the answer and worked solution →In which country was the metre first introduced in the 1790s?Read the answer and worked solution →Which one is the base unit of time in the SI system?Read the answer and worked solution →What is the process of adopting the metric system in a country called?Read the answer and worked solution →A kilolitre is equal to how many litres?Read the answer and worked solution →
Worked practice questions
A shopkeeper sells 5 kg of rice. How many grams is that?
- 500 g
- 50 g
- 5000 g
- 50000 g
Show answer and solution
Correct answer: C. 5000 g
One kilogram has 1000 g, so 5 kg has 5 x 1000 = 5000 g.
A parcel has a mass of 2500 g. What is its mass in kilograms?
- 25 kg
- 2.5 kg
- 250 kg
- 0.25 kg
Show answer and solution
Correct answer: B. 2.5 kg
Dividing 2500 by 1000 gives 2.5, so the parcel is 2.5 kg.
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