a shopkeeper decides to sell a certain item at a certain price. he togs the price on the item by increasing to decided Price by 40% while selling the item, the offers 25% discount. Find how many more or less percent he gets on the decided price.
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A grouped frequency table with class intervals of equal sizes using 250 -270 (270 not included in this interval) as one of the class intervals is constructed for the following data: 268, 220,368, 258, 242,310, 272, 342, 310, 290, 300, 320, 319,304,402,318, 406, 292, 354, 278, 210, 240, 330, 316, 406, 215, 258, 236. The frequency of the class 370-390 is: 5
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