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What is the mass 20 such?


  • a)
    60 kg

  • b)
    160 kg

  • c)
    80 kg

  • d)
    180 kg

Correct answer is option 'B'. Can you explain this answer?
Verified Answer
What is the mass 20 such?a)60 kgb)160 kgc)80 kgd)180kgCorrect answer i...
  • On left side 12 balls
  • On right side 7 balls and 40 kg
  • So as both side weigth are equal so equating them
  • Let x be the weight of a single ball
  • 12x=7x+40
  • 5x=40
  • x=8
  • The mass of 20 such balls will be 160kg
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Most Upvoted Answer
What is the mass 20 such?a)60 kgb)160 kgc)80 kgd)180kgCorrect answer i...
on left side 12 balls

on right side 7 balls and kg

so as both side weigth are equal so equating them

12x=7x+40

5x=40

x=8

The mass of 20 such balls will be 160kg
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