A school has 1260 students. the ratio of students and teachers are 35:2 . if --------- teacher joined that school... it becomes student and teachers ratio 25:2.. so how many teachers joined???
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first the number of teachers=2*1260/35=72
now let the number of teacher joined x.
now 1260/72+x=25/2
=>72+x=1260*2/25
=>x=28.8
by calculation I got this. but it is not possible
now let the number of teacher joined x.
now 1260/72+x=25/2
=>72+x=1260*2/25
=>x=28.8
by calculation I got this. but it is not possible
keddaar:
I understood
thank you
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