Question

If the length and breadth of a rectangular plot are increased by 15% and 20% respectively then how many times will

Answer 1

area of rectangle =l×b
let old length =100
and old bredth=100
so area =100×100=10000
but
increase is 15%=
length =100+15
bredth=100+20
so area =l×b
115×120=13800
percentage increase=10000/13800×100
72.6percet