SparkOfJoy
SparkOfJoy SparkOfJoy
  • 21-11-2022
  • Mathematics
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22. A box containing 40 marbles weighs 280 grams. When 30 marbles are added, the box weighs 430 grams. How many grams does the box weigh when empty? A 80 B 120 C 150 D 490 E 710​

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