Answer:
3 students
Step-by-step explanation:
now for RSM Olympiad are 8
math kangaroo are 7
studs that did both are 4
Total number of studs that participated are
(8-4) + 4 + (7-4)
4+ 4 + 3 = 11
those who didn't participate are
14-11 = 13
must be parallel
They must be parallel.
17/18
2 /18 + 15 /18
= 2 /18 + 15/ 18
= 2+15 /18
= 17 /18
100
1/2 = 50/x
(cross multiply)
100 = x
