Multiple Choice Questions

In a class there are 39 students and their average weight is 51 kg If we include the weight of the t...........

Quantitative Aptitude (CHSL) Average

In a class, there are 39 students and their average weight is 51 kg. If we include the weight of the teacher, then the average

weight becomes 51.2 kg. What is the weight of the teacher?

This questions was previously asked in

SSC CHSL 24th May 2022 Shift-3

53 kg

59 kg

57 kg

51 kg

Sure! Let’s break it down:

- Total weight of 39 students:

- Average weight = 51 kg

- Total weight = 39 students × 51 kg/student = 1989 kg

- Including the teacher's weight:

- New average weight = 51.2 kg

- Total members = 40 (39 students + 1 teacher)

- Total weight = 40 × 51.2 kg = 2048 kg

- Finding the teacher’s weight:

- Teacher’s weight = Total weight with teacher - Total weight of students

- Teacher’s weight = 2048 kg - 1989 kg = 59 kg

Answer: Option 2: 59 kg

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