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6821.450 visitors visit a museum on each Monday, while only 120 visit on each of the remaining six days of the week. How many visitors are there on a daily average basis in a month of 30 days beginning on a Monday?
6822.Total cost of 5 markers and 1 penell is Rs.245 and total cost of 3 markers and 3 pencils is Rs. 327. What is the cost of one marker?
6823.Find two consecutive positive numbers such that the sum of their squares is 7 less than 120.
6824.Find an integer such that four times the number subtracted from two times the square of the number gives 15.
6825.A, B and C share $112. B receives $12 less than A anil C gets twice as much as B. How much does C get?
6826.A train of length 99m takes 11 seconds to pass completely through a station of length 231m. What is the speed of the train in km/h?
6827.Several number of cows on a farm consume the food in 150 days. If we reduce the number of cows by 10, then the food lasts for 10 more days. How many cows were there on the farm in the beginning?
6828.What is k, given that 27^4=9?
6829.Evaluate: 4^1/2x4^2-4^0
6830.A rectangular lawn 80 meters by 60 meters has two roads each 10 m wide running in the middle of it, one parallel to the length and the other parallel to the breadth. Find the cost of gravelling them at Rs. 30 per square meter?