Some chairs are to be arranged in a number of rows. If chairs are kept in 1 row, 3 rows are left vacant and if 3 chairs are kept in a row, 3 chairs are left. What is the total number of chairs?
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Let x be the number of rows and y be the number of chairs. Then the number of rows filled with chairs = x-3. Total number of chairs, y = (x-3)4 ...(1). Total number of chairs, y = 3x+3 ...(2). From (1) and (2)=(x-3)4 =3x+3.4x-12=3x+3
x=15
From (1), total number chairs = (x-3)4 = (15-3)4 = 12*4 =48
x=15
From (1), total number chairs = (x-3)4 = (15-3)4 = 12*4 =48
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