liz drove from point a to point b at 40 km / h. on her way back she drove at 50 km / h and therefore her way back lasted one hour less. what is the distance ( in km ) between a and b?	Choose the correct choice from the following options:	A) 150	B) 200	C) 450	D) 500	E) 600
<gadget id="calculator">50 - 40</gadget>
<output>10</output>

<gadget id="calculator">50 / 10</gadget>
<output>5</output>

<gadget id="calculator">5 * 40</gadget>
<output>200</output>

<result>B</result>
liz drove from point a to point b at 40 km / h. on her way back she drove at 50 km / h and therefore her way back lasted one hour less. what is the distance ( in km ) between a and b?
multiply(divide(50, subtract(50, 40)), 40)
distance is same s 1 t 1 = s 2 t 2 40 t = 50 ( t - 1 ) t = 5 distance = speed * time 40 * 5 = 200 answer : b