Question

a Central Hall of a school is 18 M long and 12.5 M wide. A carpet is to be laid on the floor leaving a strip of 50cm width near the walls uncovered. find the area of the carpet and also of the potion left uncovered

Answer 1

area of the hall=18×12.5=225 sq m
length of the hall with carpetl=18-1=17m
breadth of the hall with carpet=13.5-1=11.5m
area of the hall with carpet=17×11.5= 195.5 sq m
portion left uncovered=225-195.5=19.5 sq m