teacher divided class of 48 students …
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Ram Kushwah 6 years, 10 months ago
Let students in 1st group=X
2nd gr.=X-5
5th gr.=X-5
4th gr.=5th gr.+3=X-5+3=X-2
3rd group=4th+2=X-2+2=X
Adding all groups=48
X+X-5+X-5+X-2+X=48
5X=48+12=60
1st gr=X=12
2nd gr.=5th gr.=X-5=7
3rd gr. =X=12
4th gr.=X-2=12-2=10
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