probability struggles: "In a school of 340 students, 40% study Japanese, 75% study French and 20% study both,"

[Josie123455]

Can anyone help with the answer and preferably working out to get the answer to:
In a school of 340 students, 40% study Japanese, 75% study French and 20% study both,

 

[stapel]

Can anyone help with the answer and preferably working out to get the answer to:

That's not quite how this site works. ("Read Before Posting")

In a school of 340 students, 40% study Japanese, 75% study French and 20% study both,

Please reply with the rest of the exercise (that is, with whatever came after the terminal comma in the above). When you reply, please include a clear listing of your thoughts and efforts so far, so that we can see where things are going sideways.

Thank you!

 

[blamocur]

Can anyone help with the answer and preferably working out to get the answer to:
In a school of 340 students, 40% study Japanese, 75% study French and 20% study both,

Answer to what? I can't find any questions there.

 

[Steven G]

Answer to what? I can't find any questions there.

Maybe there was no question mark, but there was a question. Can anyone help with the answer and preferably working out to get the answer to:
I do agree with you that there was no math question at all.

 

[Steven G]

Draw a Venn-Diagram

 

[pka]

Can anyone help with the answer and preferably working out to get the answer to:
In a school of 340 students, 40% study Japanese, 75% study French and 20% study both,

40% of 340 is 136
75% or 340 is 255
Note that 136+255=391
Did I make am error?

 

[Harry_the_cat]

@ Josie123455,

We are more than happy to help you but we won't just supply answers - that won't help you in the long run. Are you learning about Venn Diagrams at the moment? Venn diagrams are very useful for these sorts of problems. If not, there are other ways to approach these sorts of problems.

Also, it seems you haven't posted the whole question. Because the heading includes the word "probability", I'm assuming the question will be something starting with "Find the probability that ...".

Please show us what you've done so far and where you are stuck.

 

[khansaheb]

to get the answer to:

To repeat previous posters:

answer to - what?