800 men have provisions for 15 days. if 200 more men join them, for how many days will the provisions last now? Choose the correct choice from the following answers
A) 11.5  B) 12.5  C) 10.5  D) 11  E) 12
<gadget id="calculator">15 * 800</gadget>
<output>12_000</output>

<gadget id="calculator">800 + 200</gadget>
<output>1_000</output>

<gadget id="calculator">12_000 / 1_000</gadget>
<output>12</output>

<result>E</result>
800 men have provisions for 15 days. if 200 more men join them, for how many days will the provisions last now?
divide(multiply(15, 800), add(800, 200))
"800 * 15 = 1000 * x x = 12 answer : e"