albert is 2 times mary ’ s age and 4 times as old as betty. mary is 12 years younger than albert. how old is betty?
Pick.
A) 6
B) 12
C) 10
D) 15
E) 18
<gadget id="calculator">2 * 12</gadget>
<output>24</output>

<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<result>A</result>
albert is 2 times mary ’ s age and 4 times as old as betty. mary is 12 years younger than albert. how old is betty?
divide(multiply(2, 12), 4)
"a = 2 m = m + 12 m = 12 a = 24 a = 4 b , and so b = 6 the answer is a ."