a man can do a piece of work in 6 days, but with the help of his son he can do it in 3 days. in what time can the son do it alone? Choose the correct choice from the following options.
A) 7 days  B) 6 days  C) 5 days  D) 4 days  E) none of these
<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">6 - 3</gadget>
<output>3</output>

<gadget id="calculator">18 / 3</gadget>
<output>6</output>

<result>B</result>
a man can do a piece of work in 6 days, but with the help of his son he can do it in 3 days. in what time can the son do it alone?
divide(multiply(6, 3), subtract(6, 3))
"explanation : in this type of question , where we have one person work and together work done . then we can easily get the other person work just by subtracting them . as son ' s one day work = ( 1 / 3 − 1 / 6 ) = ( 6 − 3 ) / 18 = 1 / 6 so son will do whole work in 6 days answer : b"