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1. A rare coin increased in value by 250%. If it was purchased for $120. What is the new value?
2. A class has 20 students. If fourteen students are right handed. How many percent of students that are left
handed?
3. In a class of 20 students. 8 students play chess and 7 students play scrabble. The rest play minecraft. What
percentage of students that:
a. Playing minecraft?
b. Playing chess?
C. Playing Scrabble?
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Answer:
1. [ sorry I don't know :( ]
2. 30 percentage of left hand
3. (a) 25 percentage
(b) 40 percentage
(c) 35 percentage
Step-by-step explanation:
1. [ sorry I don't know :( ]
2. left hand students = 20-14 = 6
percentage of left hand students = 6/20×100 = 30
3. students plays minecraft = 8+7 = 15
= 20-15 = 5
(a) Minecraft : 5/20×100 = 25
(b) Chess : 8/20×100 = 40
(c) Scrabble : 7/20×100 = 35
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