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1. Five years ago, a man was seven times as old as his son, while five year hence, the man will be four times as old as his son. Find their present age.
 
Answer:
 
The present age of son is .
 
The present age of the man is .
 
2. Akshaya has \(2\) rupee coins and \(5\) rupee coins in her purse. If in all she has \(80\) coins totalling \(₹220\), how many coins of each kind does she have.
 
Answer:
 
Number of \(2\) rupee coins \(=\)
 
Number of \(5\) rupee coins \(=\)