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A car company sold 200 cars in a special 5-day sale. Each day the company sold 8 more tan the previous day. How many cars were sold on 4th day?

A car company sold 200 cars in a special 5-day sale. Each day the company sold 8 more tan the previous day. How many cars were sold on 4th day? Correct Answer 48

Let the number of cars sold on 1st day be x. Then the number of cars sold on 2nd, 3rd, 4th and 5th day is (x+8), (x+16), (x+24), (x+32) and (x+40). By data, x + (x+8) + (x+16) + (x+24) + (x+32) + (x+40) = 200 ? x = 16. Therefore, the number of cars sold on 4th day is 16+32 = 48.

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