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    • Question

      Ishaan and Kabir invested ₹25,000 and ₹30,000

      respectively. For the next six months after the first month Ishaan kept on adding ₹1000 while Kabir kept on removing ₹2000 every month. In the remaining months Ishaan kept on removing ₹1000 while Kabir kept on adding ₹2000 every month. Naina joined them with ₹60,000 four months after the start and continued till the end. If the total profit is ₹2,30,000, what will be the difference in the shares of Naina and Ishaan?
      A ₹20,000 Correct Answer Incorrect Answer
      B ₹25,000 Correct Answer Incorrect Answer
      C ₹30,000 Correct Answer Incorrect Answer
      D ₹32,000 Correct Answer Incorrect Answer
      E ₹35,000 Correct Answer Incorrect Answer

      Solution

      Ishaan's investment: 1000 [25 + (26+27+28+29+30+31) + (30+29+28+27+26)]
      = 1000 [25 + 171 + 140]
      = 1000 [336] = ₹3,36,000

      Kabir's investment: 1000 [30 + (28+26+24+22+20+18) + (20+22+24+26+28)]
      = 1000 [30 + 138 + 120]
      = 1000 [288] = ₹2,88,000

      Naina's investment: 8 × 60,000 = ₹4,80,000

      Ratio of Profits: 336 : 288 : 480

      Difference in the shares of Naina and Ishaan:
      {(480-336) × 2,30,000}/(336+288+480)
      = (144 × 2,30,000)/1104 = ₹30,000

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