Question

Revisit The average weight of 11 students is 50 kg. These students are made to stand in a row. The average weight of the first six students is 49 kg and the average weight of the last six students is 52 kg. Now, the teacher asked the sixth student to leave the place. What is average weight of the remaining students?​

Answer 1

Answer:

Total weight of 24 students =24×35=840kg

Total weight of 25 persons with teacher =25×35.4=885kg.

∴ Weight of teacher =(885−840)kg=45kg.

Answer 2

Answer:

Average weight of the remaining students 53.2 kg.

Step-by-step explanation:

According to the question , the average weight of 11 students is 50 kg. These students are made to stand in a row. The average weight of the first six students is 49 kg and the average weight of the last six students is 52 kg. Now, the teacher asked the sixth student to leave the place.

We need to find average weight of the remaining students.

Total weights of 11 students $= 11 * 50 kg = 550 kg$

Total weights of first 6 students $= 49 * 6 kg = 294 kg$

Total weights of last 6 students $= 52 * 6 kg = 312 kg$

Weight of $6^{th}$ student $312-294 kg = 18 kg$

Total weights of remaining 10 students $= 550-18 kg = 532 kg$
Average weight of the remaining students = $\frac{532}{10} kg = 53.2 kg$

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