Question: the average weight of 8 girls increases by 3 kg when a new girl comes in place of one of them weighing 70 kg . what might be the weight of the new girl ?
A) 94 kg
B) 95 kg
C) 96 kg
D) 97 kg
E) 98 kg
Correct answer: a
Grade: 7 | Topic: Expressions and Equations | Difficulty: Medium | Standard: 7.EE.B.4