A PENCIL

{:("Column A" , "Patrick purchased 80 pencils and ","ColumnB"),(, "sold them at a loss that is equal to",),(, "the selling price of 20 pencil",),("Cost of 80 pencils",,"Selling price of 100 pencils"):}

A dozen of pencils is the collection of _____pencils.

A box contains 8 red pencils and some blue pencils. If the probability of drawing a blue pencil is three times of a red pencil, then the number of blue pencils in the bag are:

A has 8 pencils, B has 10 pencils and C has 15 pencils , then the average number of pencils with them :

A bag contains 8 red pencils and 5 black pencils. What is the probability of getting a yellow pencil when one pencil is drawn at random?

A and B both have some pencils. If A gives 10 pencils to B, then B will have twice as many as A. And if B gives 10 pencils to A, then they will have the same number of pencils. How many pencils does each have?

John bought 3 pencils for 6 .Earlier the price of 3 pencils was 3.Find the increase in the price of one pencil.