The cost C of running a school is directly proportional to the number of students N, if 20 students cost #10,000, How many students can #1,000,000 cover?
3000
1000
2000
4000
Correct answer is C
if 20 students = 10000
: #500 per student
#1,000,000 ÷ 500
= 2,000 cover students