Solve Questions on Conversion of Units of Measurement
1. Convert 500 grams to kilograms.
a) 0.05 kg
b) 0.5 kg
c) 5 kg
d) 50 kg
Answer: b) 0.5 kg
Explanation: To convert grams to kilograms, we divide the given value by 1000. Therefore, 500 grams is equal to 0.5 kilograms.
2. Convert 29 kilometres to metres.
a) 290 m
b) 2,900 m
c) 29,000 m
d) 290,000 m
Answer: c) 29,000 m
Explanation: To convert kilometres to metres, we multiply the given value by 1000. Therefore, 29 kilometres is equal to 29,000 metres.
3. Convert 4 weeks to minutes.
a) 40,320 minutes
b) 8,640 minutes
c) 6,720 minutes
d) 5,040 minutes
Answer: a) 40,320 minutes
Explanation: To convert 4 weeks to minutes, we multiply 4 by 7 (days in a week), then multiply by 24 (hours in a day) and finally multiply by 60 (minutes in an hour). This calculation gives us a total of 40,320 minutes.
4. How many decalitres are there in 45 litres?
a) 45,000 decalitres
b) 4500 decalitres
c) 450 decalitres
d) 0.45 decalitres
Answer: c) 450 decalitres
Explanation: To convert from litres to decalitres, we need to know that there are 10 decalitres in 1 litre. Since we have 45 litres, we can use the conversion factor of 10 decalitres per litre to find the equivalent amount in decalitres.
45 litres x 10 decalitres = 450 decalitres
5. How many seconds are there in 4 minutes and 45 seconds?
a) 280 seconds
b) 240 seconds
c) 300 seconds
d) 285 seconds
Answer: d) 285 seconds
Explanation: To convert 4 minutes and 45 seconds in seconds we need to change 4 minutes in seconds.
4 minutes and 45 seconds
= 4 minutes x 60 seconds + 45 seconds
= 240 seconds + 45 seconds = 285 seconds.
Worksheet on Conversion of Units of Measurement
1. How many minutes are there in 2 hours and 30 minutes?
a) 120 minutes
b) 150 minutes
c) 140 minutes
d) 180 minutes
Answer: b) 150 minutes
2. How many hours are there in 540 minutes?
a) 6 hours
b) 8 hours
c) 9 hours
d) 7 hours
Answer: c) 9 hours
3. Convert 2 hours to seconds.
a) 10,800 seconds
b) 9,000 seconds
c) 7,200 seconds
d) 3,600 seconds
Answer: c) 7,200 seconds
4. Convert 3 litres to millilitres.
a) 300 mL
b) 3000 mL
c) 30,000 mL
d) 300,000 mL
Answer: b) 3000 mL
5. Convert 250 centimetres to metres.
a) 2.5 m
b) 25 m
c) 250 m
d) 2500 m
Answer: a) 2.5 m
6. Convert 5 days to hours.
a) 24 hours
b) 72 hours
c) 120 hours
d) 1200 hours
Answer: c) 120 hours
7. How many days are there in 72 hours?
a) 2 days
b) 3 days
c) 4 days
d) 5 days
Answer: b) 3 days
8. Convert 2.5 hours to minutes.
a) 150 minutes
b) 165 minutes
c) 170 minutes
d) 175 minutes
Answer: a) 150 minutes
9. Match the following:
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A
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B
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p) 44 is greater than 35
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i) 23 = 23
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q) 23 is equal to itself
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ii) 99 < 102
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r) 99 is smaller than 102
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iiii) 44 > 35
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a) (p) – (iii), (q) – (ii), (r) = (i)
b) (p) – (i), (q) – (iii), (r) = (ii)
c) (p) – (ii), (q) – (iii), (r) = (i)
d) (p) – (iii), (q) – (i), (r) = (ii)
Answer: d) (p) – (iii), (q) – (i), (r) = (ii)
10. How many Litres are there in 1 hectolitre?
a) 10 litres
b) 100 litres
c) 1,000 litres
d) 10,000 litres
Answer: b) 100 litres
