Five years ago, the average age of 4 girls was 7 years. On joining a new girl, the present average age becomes 13 years. The current age of the new girl is:
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Q:
Five years ago, the average age of 4 girls was 7 years. On joining a new girl, the present average age becomes 13 years. The current age of the new girl is:
- 117 Yeartrue
- 216 yearfalse
- 319 Yearfalse
- 415 Yearfalse
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