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Quantitative - Mathematics - Word Problems:

Average

MCQ - 35-12802

Question:

When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200 g. What is the average weight of the remaining 59 students?

  1. 57
  2. 56.8
  3. 58.2
  4. 56.8

Correct Answer: A

Explanation:

Let the average weight of the 59 students be A.

Therefore, the total weight of the 59 of them will be 59 A.

The questions states that when the weight of this student who left is added, the total weight of the class

= 59A+45

When this student is also included, the average weight decreases by 0.2 kgs.

59A+45/60=A−0.2

⇒59A+45=60A−12

⇒45+12=60A−59A

⇒A=57

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1297 MCQ for effective preparation of the test of Average of Word Problems section.

Read the MCQ statement: When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200 g. What is the average weight of the rem .... 59 students? , keenly and apply the method you have learn through the video lessons for Average to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 35-12802.

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Solve the question for MCQ No. and decide which option (A through D/E) is the best choice to answer the MCQ, then click/tap the blue button to view the correct answer and it explanation.

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