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      Question

      The profit of a business increased by Rs. 300. If the old

      profit was 30% less than the new profit, then the old profit was:
      A Rs.550 Correct Answer Incorrect Answer
      B Rs.700 Correct Answer Incorrect Answer
      C Rs.500 Correct Answer Incorrect Answer
      D Rs.200 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the new profit of the business be Rs. '100x'

      So, old profit of the business = 100x Γ— 0.7 = Rs. '70x'

      So, 100x - 70x = 300

      So, 30x = 300

      So, x = 10

      So, old profit of the business = 10 Γ— 70 = Rs. 700

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