20 g is 50 g (), 20 g is less than 50 g (), 50 g is more than 20 g ()%

40%
60%
250%

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1. 24 km is 20% more than () km; 15 g is 20% less than () km
2. 50 grams more than 25 grams
3. 2 and 1 / 2 hours: 50 minutes = (): () = fraction = ()
4. 30 points = several parts of the time 250 kg = several parts of the ton 125 m = several parts of the thousands of meters 70 g = several parts of the thousands of grams 15 points = several parts of the time 8 cm = fraction of a decimeter 8 cm = a few tenths of a decimeter
5. What fraction of an hour is 25 minutes? Please, thank you
6. 15 minutes = fraction of an hour
7. Five decimeters is a fraction of a meter. 25 minutes is a fraction of two hours Five decimeters is a fraction of a meter. 25 minutes is a fraction of two hours
8. Two hours and 15 minutes is a fraction of an hour
9. An hour and 15 minutes is a fraction of an hour
10. 4 hours 15 minutes = what time 15 minutes = 0.15 * 60 = 9 how to calculate 4 hours
11. The number of a is 25% less than that of B, and the number of a and B is 82% more than that of a kilogram The number of a is 25% less than that of B, and the number of a and B is 25% less than that of B It is judged that 82% of the number of people with 820 grams per kilogram is 20% of the number of people with a, and the ratio of number B to number a is 1:5 The price of a commodity is reduced by 20% and then raised by 25%. The current price is equal to the original price
12. 820 grams is more than 82% of a kilogram, please
13. A fifth increase in 40g is () g, a fifth increase in 40g is () g, and a few percent decrease in 40g compared with 50g（ A fifth increase of 40g is () g, a fifth increase of 40g is () g, a few percent less than 50g, and () g is 20% more than 40g
14. Again, 20 grams is 37.5% less than 40 grams
15. 400g to 2.5kg
16. Simplification ratio: 15 minutes: 0.3 seconds, 8 cm: 200 meters, 0.8:5.6
17. Ratio: 0.15: three quarters, 50g: 0.2kg, simplification ratio: 0.3cm: 200m, 0.8: 5.6
18. 125 to 2 / 3 and 320 g to 1.6 kg
19. When the ratio is 1:25%, 0.15:3, 50g: 0.2kg, 8cm: 200m, 0.8:5.6
20. 5 g to 1 / 4 kg, calculate the ratio