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Q: Box contains 15 pencils 4 are defective if 3 pencils are taken out what is the probability of selecting a good pen?
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Related questions

What is the probability with 15 red pencils and 10 blue pencils of picking 1 red one?

60% chance or 15/25


Caroline has a box with 1 red pencil 2 yellow pencils 3 green pencils 4 blue pencils and 5 brown pencils if you pull out a pencil at random what is the probability it will be brown?

5 out of 15


A box contains 3 yellow 2 blue and 4 red pencils suppose you choose a pencil replace then choose another Find the probability of choosing yellow then red?

4/27


And office manager ordered 12 boxes of pens and 14 boxes of pencils on the internet. Each box of pens contains 124 each box of pencils contains what is the total number of pencils the manager order?

The answer is 20832


How many packages of pencils will a teacher buy if he needs 25 pencils for the children in his class and each package contains 10 pencils How many extra pencils will he have left over?

There will be: (3*10)-25 = 5 pencils left over


A pencil case contains pencils of colours 3 black 1 green and 1 blue one pencil is selected without looking what is the probability?

There is a 60% chance you will choose a black, 20% chance of a green, and 20% chance of a blue.


If Ryan bought 3 packages of pencils Each package contains twelve pencils Michael bought twice as many pencils as Ryan bought How many pencils did Michael buy Write a number sentence?

3x12x2=72


What are number of boxes having no pencils if there are twelve pencil boxes in a bag six boxes have red pencils and four boxes have black pencils three boxes have both?

5 of the other boxes, 3 contain only red pencils, 1 contains only black pencils, and 3 contain mixed pencils. I came to this answer with this formula: x=12- [(6-3)+(4-3)]


Mr. Matthews purchases 22 boxes ofpencils for 5 fourth-grade classes. Eachbox contains 45 pencils. How manypencils will each class receive?

Each class gets 198 pencils.


How many pencils are there in ten boxes if each box holds two dozen pencils?

Well, isn't that a lovely question! If each box holds two dozen pencils, that means each box has 24 pencils. So, if we have ten boxes, we can simply multiply 24 pencils by 10 boxes to find the total number of pencils. That would be 240 pencils in total! Just imagine all the beautiful drawings and happy little accidents you could create with all those pencils.


What elements are used as lead in pencils?

The lead in pencils is made of the element carbon, in the form of graphite. Graphite powder is mixed with clay and wax. The more graphite the pencil contains, the softer the lead, and darker the mark.


How many is a gross of pencils?

A gross of pencils is 144 pencils.