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Let the cost price of a shirt = Rs. '16x' Then, cost price of 9 shirts = 16x X 9 = Rs. '144x' Selling price of 1 shirt = 144x ÷ 8 = Rs. '18x' Marked price of each shirt = 16x X 1.5 = Rs. '24x' So, discount offered on each shirt = {(24x - 18x) ÷ 24x} X 100 = (6/24) X 100 = 25% Alternate Solution Ratio of cost price to marked price to selling price = 8:{(1.5 X 8)}:9 = 8:12:9 Required percentage = {(12 - 9)/12} X 100 = 25%
525, 524, 516, 487, 425, 300
0 7 26 63 126 215
...126 130 114 150 82 186 42
...43, 42, 41, 39, 33, 10
71 81 61 101 51 181
Find the Wrong number in the given number series.
12.8, 17.4, 22, 26.6, 31.2, 36.8
15, 30, 30, 20, 10, 8
12, 13, 21, 44, 116.5, 340.5
8, 29, 152, 1073, 9660, 106361