when a teacher counted her students in groups of 4, there were 2 students left over. when she counted them in gruops of 5, she had i student left over. if 15 of
Matematika
ngurahardiawan
Pertanyaan
when a teacher counted her students in groups of 4, there were 2 students left over. when she counted them in gruops of 5, she had i student left over. if 15 of her students were girls and she had more girls than boys, how many students did she have?
1 Jawaban
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1. Jawaban mintajawabandong1
(15+x)=y
y/4= n+2/4
y= 4n+2
(15+x)=y
y/5=m+1/5
y=5m+1
4n+2=5m+1
4n=5m-1
n=(5m-1)/4
m=5
n=(25-1)/4=24/4
n=6
y=5m+1
= 5*5+1 =25+1=26
15+x=26
x=11
Girls 15
boys 11
total students 26