Test created at: 2019-01-04 by Igor; number of questions: 22.
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Q1: What is Percentage in Math?
Q2: Select true statements:
Q3: If 50% of the total number of students in the class are male, can we know the number of total students in class?
Q4: Select answeres where we have 25% female in group:
Q5: 50 apples as a percentage of 1250 apples =
Q6: What is the 50% of 40%?
Q7: In container we have 150 smartphones. 60% of them are BLACK. 20% of BLACK phones have ANDROID system. What is the percentage of BLACK ANDROID in container?
Q8: In container we have 150 phones and 16% of them are red. How many red phones we have in container?
Q9: In box we have 20 yellow apples and this is 40% of total amount. How many apples we have in box?
Q10: 25% =
Q11: An increase of 100% = new amount is..
Q12: An increase of 100% on 20 dollars will result new price of:
Q13: An increase of 800% on 1 dollar. What is the new price?
Q14: A decrease of 60% =
Q15: $120 price + decrease by 20%. What is new price?
Q16: We had 1000 boxes. If number of boxes is decreased by 100% how many boxes we have?
Q17: The number is increased by 50% then decreased by 50%. What is the new amount?
Q18: The price was increased by 25%. What is the % of decrease to get original price?
Q19: 50% of citizens voted on election. This is 10% of increase compared to previous year. What was the % in previous year?
Q20: 50% of citizens voted on election. This is 10 percentage points of increase compared to previous year. What was the % in previous year?
Q21: If we increase amount by 10% twice, new amount is:
Q22: In Petri dish we have 1 million bacteria. Their growth rate is continuously 20% per week. What is the amount of bacteria after 3 weeks?