The cloth required to make a shirt of school uniform for each boy is $1 \mathrm{m} 80 \mathrm{cm}$. How many shirts can tailor stitch using $40 \mathrm{m}$ of cloth? How much cloth will be left?

You live in Ahmedabad and you travelled $400 \mathrm{m}$ by bus to reach the nearest station. Then you take a train to reach Gandhi nagar which is $15 \mathrm{km}$ away. Then you take a cab to reach your aunt's house which is $18 \mathrm{km}$ away. How much distance did you travel to reach your aunt's house?