Average

Quantitative Aptitude (MTS)

Title

45:30

8 of 24 completed

5 of 15 completed

38 of 100 completed

8 of 20 completed

Indian Economy - Understanding the basics of Indian economic system

The average weight of 6 girls is increased by 2.5 kg when one of the girls whose weight is 38 kg is replaced by a new girl. Find

the weight of the new girl.

This questions was previously asked in

SSC MTS 6th July 2022 Shift-3

46 kg

58 kg

53 kg

49 kg

- The average weight of 6 girls increases by 2.5 kg. This means the total weight increases by \(6 \times 2.5 = 15\) kg.

- Originally, the total weight of the 6 girls includes the girl weighing 38 kg.

- When she is replaced by a new girl, the total weight increases by 15 kg.

- So, the weight of the new girl is \(38 + 15 = 53\) kg.

- Option 1: 46 kg – This is not correct. It does not account for the 15 kg increase.

- Option 2: 58 kg – This is higher than needed.

- Option 3: 53 kg – This matches the required increased weight correctly.

- Option 4: 49 kg – This is not enough for the increase.