two men and 7 children complete a certain piece of work in 4 days while 4 men and 4 children complete the same work in only 3 days. the number of days required by 1 man to complete the work is  Choose one:
A) 60 days  B) 15 days  C) 6 days  D) 51 days  E) 50 days
<gadget id="calculator">7 * 4</gadget>
<output>28</output>

<gadget id="calculator">4 + 4</gadget>
<output>8</output>

<gadget id="calculator">28 - 8</gadget>
<output>20</output>

<gadget id="calculator">7 / 3</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">(7/3) - 1</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">20 / (4/3)</gadget>
<output>15</output>

<result>B</result>
two men and 7 children complete a certain piece of work in 4 days while 4 men and 4 children complete the same work in only 3 days. the number of days required by 1 man to complete the work is
divide(subtract(multiply(7, 4), add(4, 4)), subtract(divide(7, 3), 1))
two men and 7 children complete a certain piece of work in 4 days or 8 men and 28 children complete a certain piece of work in 1 days 4 men and 4 children complete the same work in only 3 days . or 12 men and 12 children complete the same work in only 3 days . so 8 men + 28 children = 12 men + 12 children 1 man = 4 children 4 men and 4 children complete the same work in only 3 days or 4 men and 1 man ( in place of 4 children ) complete the same work in only 3 days or 5 men complete the same work in 3 days or 1 man will complete the same work in 5 * 3 = 15 days answer : b