29. Four mark exercise problems XI

A mobile vendor has $22$ items, some which are pencils and others are ball pens. On a particular day, he is able to sell the pencils and ball pens. Pencils are sold for $₹15$ each and ball pens are sold at $₹20$ each. If the total sale amount with the vendor is $₹380$, How many pencils did he sell?

 

Answer:

 

 pencils were sold.