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      Question

      Out of total number of people in an office, 47% are

      males. Ratio of number of married to that of unmarried people in the office is 3:2 while ratio of number of married males and married females in the office is 8:7, respectively.ย  Find the total number of people in the office if the number of unmarried females in the office is 70.
      A 240 Correct Answer Incorrect Answer
      B 230 Correct Answer Incorrect Answer
      C 280 Correct Answer Incorrect Answer
      D 240 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let the total number of people in the office be โ€˜100xโ€™ Number of males in the office = 100x ร— 0.47 = โ€˜47xโ€™ Number of females in the office = 100x โ€“ 47x = โ€˜53xโ€™ Total number of married people in the office = 100x ร— (3/5) = โ€˜60xโ€™ Total number of unmarried people in the office = 100x ร— (2/5) = โ€˜40xโ€™ Number of married males in the office = 60x ร— (8/15) = โ€˜32xโ€™ Number of married females in the office = 60x โ€“ 32x = โ€˜28xโ€™ Number of unmarried females in the office = 53x โ€“ 28x = โ€˜25xโ€™ According to question: 25x = 70 x = 2.8 So, total number of people in the office = 100 ร— 2.8 = 280

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