40% of 300
=300×(40/100)
[As40 percent means 40 out of hundred, so we need to multiply the fraction]
=3×40
=120
40% of 300 =120 So 120 students choose conserving natural resources.
2.
Now 24% choose conserving natural resources ,
24% of 300
=300(24/100)
=3×24
=72
So 72 students choose conserving natural resources.
