The average temperature of the town in the first four days of a month was 58 degrees. The average for the second, third, fourth and fifth days was 60 degrees. If the temperatures of the first and fifth days were in the ratio 7 : 8, then what is the temperature on the fifth day ?
Answers:	A) 62 degrees	B) 64 degrees	C) 65 degrees	D) 66 degrees	E) 67 degrees
Explanation:   Sum of temperatures on 1st, 2nd, 3rd and 4th days = (58 * 4)= 
<gadget id="calculator">(58 * 4)</gadget>
<output>232</output>
232 degrees ... (1)   Sum of temperatures on 2nd, 3rd, 4th and 5th days - (60 * 4)= 240 degrees ....(2)   Subtracting (1) From (2), we get :   Temp, on 5th day - Temp on 1st day = 8 degrees.   Let the temperatures on 1st and 5th days be 7x and 8x degrees respectively.   Then, 8x - 7x = 8 or x = 8. Answer: 64 degrees   Temperature on the 5th day = 8x = 64 degrees.
<result>B</result>
The average temperature of the town in the first four days of a month was 58 degrees. The average for the second, third, fourth and fifth days was 60 degrees. If the temperatures of the first and fifth days were in the ratio 7 : 8, then what is the temperature on the fifth day ?