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Question

Sonu invested 10% more than Mona. Mona invested 10% less than Raghu. If the total sum of their investments is Rs 5,780, how much amount did Raghu invest?

  • Rs 2,010
  • Rs 2,000
  • Rs 2,100
  • Rs 2,210
  • None of these
Answer- B

Let money invested by Raghu = Rs X say

Money invested by Mona = (9/10)X = 0.9X

Money invested by sonu = (0.9X) ×(110/100) = 0.99x

Also, X + 0.9X + 0.99X = 5780

=>           X = 5780/2.89 = 2000


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