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If 6 students occupy a bench, one bench will be left completely unoccupied. If 5 students occupy each bench, instead, one student will not find a seat
Question

If 6 students occupy a bench, one bench will be left completely unoccupied. If 5 students occupy each bench, instead, one student will not find a seat. The number of students is

A.

30

B.

31

C.

36

D.

42

Correct option is C

Given :-
If 6 students occupy a bench, 1 bench is left unoccupied.
If 5 students occupy each bench, 1 student is left without a seat.
Solution:-
Number of students when 6 occupy a bench = 6 (x−1),where x is the total number of benches.
Number of students when 5 occupy a bench = 5x+1.
6 (x−1) = 5x + 1
6x−6=5x+1
6x−5x=1+6
x=7
Number of students=6 (x−1)  =6(7−1 )= 6 × 6 = 36.
Thus, the correct answer is option (C) 36.

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