There are 960 hectares of cultivated land, of which dry land accounts for 25% and the rest is paddy field. Later, dry land was newly opened, accounting for 40%. How much did you drive?
There are 960 hectares of cultivated land, of which 25% are dry land and the rest are paddy fields. Later, dry land was newly opened, and dry land accounted for 40%. How many hectares of dry land have been newly reclaimed?
960×( 1-25%)÷( 1-40%)-960
=960×75%÷60%-960
=720÷60%-960
= 1200-960
=240 hectares