60% of the total people at the mall shopped for clothes....that means 40% of the people didn't shop for clothes. And there were 2500 people who didn't shop for clothes.
so 40% of the total amount of people is 2500
0.40x = 2500
x = 2500/0.40
x = 6250 total people
check...
shop for clothes...60% of 6250 = 0.6(6250) = 3750
did not shop for clothes....40% of 6250 = 0.4(6250) = 2500
total people = 3750 + 2500 = 6250 (correct)
in summary : there were 6250 people at the mall....3750 of them shopped for clothes and 2500 of them didn't shop for clothes <==
