Question

one bags of wheat floor weighs fourteen kilos...if three guys had forty bags each how many kilos of wheat floor were they having all together?

Answer 1

1 bag of wheat = 14 k

3 guys = 40 bags each
3 x 40 = 120 bags 

So:

120 * 14 = 1680

Finally:

In total they had 1680 kilos of wheat.