exam Maths Puzzle Numerical Ability

A bus traveled for 2 h at r mi/h, then decreased the speed by 10 mi/h and traveled for 1 more hour. How far did the bus go?

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exam Other Question

Allen bought 20 stamps at the post office in 37 cents and 20 cents denominations. If the total cost of the stamps was $7.06, how many 37 cent stamps did Allen buy? Two Gasoline Distributors, A & B, are 228 mi apart on Interstate 80. A charges $0.85/gal and B charges $0.80/gal. Each charges $0.05/gal per mile for delivery. Where on Interstate 80 is the cost to the customer the same?