If 20 men can build a wall 66 metres long in 12 days, what length of a similar can be built by 86 men in 8 days? Choose the correct choice from the following:	A) 189.2 mtrs	B) 378.4 mtrs	C) 478.4 mtrs	D) 488.4 mtrs	E) 578.4 mtrs
If 20 men can build a wall 66 metres long in 12 days,   length of a similar wall that can be built by 86 men in 8 days = (66*86*8)/(12*20)= 
<gadget id="calculator">(66*86*8)/(12*20)</gadget>
<output>946/5 = around 189.2</output>
189.2 mtrs   189.2 mtrsNSWER:189.2 mtrs
<result>A</result>
If 20 men can build a wall 66 metres long in 12 days, what length of a similar can be built by 86 men in 8 days?