MiniTesting > Math > Percentage

Percentage

Test created at: 2019-01-04 by Igor; number of questions: 22.
If you are not ready, you could first read the Learn page and do the test later.

Average score for this test is: 73.7% calculated only from first attempts (6 pcs.), last one was: 2019-04-03.

Q1: What is Percentage in Math?





Good answeres: 1

Q2: Select true statements:




Good answeres: 1

Q3: If 50% of the total number of students in the class are male, can we know the number of total students in class?




Good answeres: 1

Q4: Select answeres where we have 25% female in group:






Good answeres: 3

Q5: 50 apples as a percentage of 1250 apples =




Good answeres: 1

Q6: What is the 50% of 40%?





Good answeres: 1

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?






Good answeres: 1

Q8: In container we have 150 phones and 16% of them are red. How many red phones we have in container?





Good answeres: 1

Q9: In box we have 20 yellow apples and this is 40% of total amount. How many apples we have in box?





Good answeres: 1

Q10: 25% =




Good answeres: 1

Q11: An increase of 100% = new amount is..





Good answeres: 2

Q12: An increase of 100% on 20 dollars will result new price of:





Good answeres: 1

Q13: An increase of 800% on 1 dollar. What is the new price?




Good answeres: 1

Q14: A decrease of 60% =



Good answeres: 1

Q15: $120 price + decrease by 20%. What is new price?




Good answeres: 1

Q16: We had 1000 boxes. If number of boxes is decreased by 100% how many boxes we have?





Good answeres: 1

Q17: The number is increased by 50% then decreased by 50%. What is the new amount?



Good answeres: 1

Q18: The price was increased by 25%. What is the % of decrease to get original price?





Good answeres: 1

Q19: 50% of citizens voted on election. This is 10% of increase compared to previous year. What was the % in previous year?



Good answeres: 1

Q20: 50% of citizens voted on election. This is 10 percentage points of increase compared to previous year. What was the % in previous year?



Good answeres: 1

Q21: If we increase amount by 10% twice, new amount is:





Good answeres: 1

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?





Good answeres: 1

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