A circular jogging track forms the edge of a circular lake that has a diameter of 2 miles. Johanna walked once around the track at the average speed of 4 miles per hour. If t represents the number of hours it took Johanna to walk completely around the lake, which of the following is a correct statement? Options.
A) 0.5< t < 0.75	B) 1.75< t < 2.0	C) 1 < t < 2	D) 2.5 < t < 3.0	E) 3 < t < 3.5
D=2, and R=1   circumference thus is 2pi miles   we know that she walked 4mph   knowing the formula rt=D, we can deduce that t= D/r   D is 2pi miles and r is 4mph   t = 2pi/4   pi can be rewritten as 22/7   2*22/7 = 44/7 and multiply this by 1/4 = 44/28. This is greater than 1, but less than 2, therefore, 1&lt;t&lt;2. Answer choice 1 &lt; t &lt; 2.
<result>C</result>
A circular jogging track forms the edge of a circular lake that has a diameter of 2 miles. Johanna walked once around the track at the average speed of 4 miles per hour. If t represents the number of hours it took Johanna to walk completely around the lake, which of the following is a correct statement?