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In a class if 3 students sit on each bench 1student will be left if 4 students sit on each bench 1 bench will be left find no of students and no of benches

in that class


If there 16 students in the class then if 3 students sit on 1 bench. 1 student will be left. Number of bench will be 5. And if 4 students sit on 1 bench then 1 bench is left.
0 0 0

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Let number of students be "N"
and number of benches be"n"
so 3 students on each benches student left will be 1
subtracting 1 and 2 we get 
putting n=5
in in 1
so number of student are 16 and number of benches are  5
2 4 2
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