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9171.A boy rode his bicycle northward, then turned left and rode 1 km and again turned left and rode 2 km. He found himself 1 km west of his starting point. How far did he ride northward initially?
9172.A car covered 80 km per hour after 3.5 hours traveling how much it will be cover?
9173.What is the mean proportion of 0.32 and 0.022?
9174.A man sells 15 newspapers for Rs.75. Find (a) What was the price of each newspaper? (b) What will he have to pay for 40 newspapers
9175.Add 0.98+45.102+32.3333+31+0.0009
9176.A firm has a total cost of rs 7000 and variable cost rs 6000 for such unit product . what is the fixed cost?
9177.A farmer has 10 cows. All cows died except four. How many cows are left?
9178.For symmetrical distribution coefficient of skewness is ______?
9179.The method of sampling in which the choice of sample items depends exclusively the judgement of the investigator is termed as
9180.Each of the five persons A, B, C, D and E possesses unequal number (<10) of similar items. A. B and C possess 21 items in all while C, D and E posses 7 items in all. How many items do A and B possess in all?