Question

in a certain school of 200 students ,the students can study french,spanish,,both or neither . Just as many study both as study neither .One quarter of those who study spanish also study french.The total number who atudy french is 10 fewer than those who study spanish only .what percent of student study french only​

Answer 1

Given :   in a certain school of 200 students ,the students can study french,spanish,,both or neither .

To find :  what percent of student study french only​

Step-by-step explanation:

Let say  

Study Both & Study Neither  =  B

One quarter of those who study spanish also study french

=> one  quarter of those who study spanish Study Both

=> Study Spanish=  4B

Study Spanish only = 4B  - B  = 3B

Study French  =  3B  - 10

Total Students  =  Study Spanish + Study French  - Study Both + Study Neither

200 = 4B  + 3B - 10   + B - B

=> 7B = 210

=> B = 30

French Only =  French - Both  =  3B - 10 - B

= 2B - 10

= 2(30) - 10

=  50

percent of student study french only​ = (50/200) * 100 = 25 %

25 %  of student study french only​

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Answer 2

Step-by-step explanation:

i think it will be helpful.