Answer :
To find the weight of the fourth girl, we begin by noting the total combined weight of all four girls and the weights of three of them.
1. Total Weight of All Girls:
- The combined weight of the four girls is 196 kg.
2. Weights of Three Girls:
- The weight of the first girl is 45 kg.
- The weight of the second girl is 7 kg.
- The weight of the third girl is 60 kg.
3. Calculate the Total Weight of the Known Girls:
- We add up the weights of the first three girls:
[tex]\[
45 + 7 + 60 = 112 \text{ kg}
\][/tex]
4. Find the Weight of the Fourth Girl:
- Since the total weight of all four girls is 196 kg, we subtract the combined weight of the first three girls from the total weight:
[tex]\[
196 - 112 = 84 \text{ kg}
\][/tex]
Therefore, the weight of the fourth girl is 84 kg.
1. Total Weight of All Girls:
- The combined weight of the four girls is 196 kg.
2. Weights of Three Girls:
- The weight of the first girl is 45 kg.
- The weight of the second girl is 7 kg.
- The weight of the third girl is 60 kg.
3. Calculate the Total Weight of the Known Girls:
- We add up the weights of the first three girls:
[tex]\[
45 + 7 + 60 = 112 \text{ kg}
\][/tex]
4. Find the Weight of the Fourth Girl:
- Since the total weight of all four girls is 196 kg, we subtract the combined weight of the first three girls from the total weight:
[tex]\[
196 - 112 = 84 \text{ kg}
\][/tex]
Therefore, the weight of the fourth girl is 84 kg.
