πŸ“’ Too many exams? Don’t know which one suits you best? Book Your Free Expert πŸ‘‰ call Now!

  • google app store apple app store
  • βœ–

      Question

      The average weight of 48 students in a school is 32 kg.

      If two new students with weights of 'x' kg and '(x + 6)' kg join the group, the average weight of the class increases to 32.4 kg. Determine the average weight of the two new students.
      A 37 kg Correct Answer Incorrect Answer
      B 39 kg Correct Answer Incorrect Answer
      C 40 kg Correct Answer Incorrect Answer
      D 43 kg Correct Answer Incorrect Answer
      E none Correct Answer Incorrect Answer

      Solution

      Total weight of 48 students = 48Γ—32 = 1536 kg When two students join the class then new total weight = 50Γ—32.4 = 1620 kg Increase in weight = 1620-1536 = 86 kg Average of 2 new students = 84/2 = 43 kg

      Practice Next
      ask-question