65 boys can complete a work in 30 days.how many men need to complete twice the work in 20 days	Select:  A) 160  B) 170  C) 180  D) 195  E) 200
one man can complete the work in 30*65= 
<gadget id="calculator">30*65</gadget>
<output>1_950</output>
1950 days= one time work   to Complete the work twice it will be completed in   let M be the no. of worker assign for this therefore the eqn becomes   M*20=2*1950   M=195 workers   ANSWER:195
<result>D</result>
65 boys can complete a work in 30 days.how many men need to complete twice the work in 20 days