Question

Barak asks 200 students which flower they like best. If 70 students responded that they like tulips, what percent of the students surveyed said they like tulips? A) 35% B) 70% C) 75% D) 200% Brad has 50 marbles Seventy percent of them are green. How many marbles are green?​

Answer 1

1) 35%. 2) 35

Explanation:

1)

x : 100 = 70 : 200

x = 70 * 100 / 200

x = 70/2

x = 35%

2)

70 : 100 = x : 50

x = 50 * 70/ 100

x = 7 * 5

x = 35