Choose all statements that are not true.
a 20% of 20 is 4
b 30% of 30 is 9
c 40% of 50 is 15
d 50% of 110 is 60
e 60% of 60 is 360
The answer I choose is all of them. Is this correct.
Three of them are not true.
No, your answer is not correct. I will go through each statement and explain how to calculate each percentage, so you can determine which statements are true and which are not.
a) 20% of 20 is 4.
To calculate 20% of 20, you divide 20 by 100 and then multiply it by 20.
`(20 / 100) * 20 = 4`
So statement a) is true.
b) 30% of 30 is 9.
To calculate 30% of 30, you divide 30 by 100 and then multiply it by 30.
`(30 / 100) * 30 = 9`
So statement b) is true.
c) 40% of 50 is 15.
To calculate 40% of 50, you divide 50 by 100 and then multiply it by 40.
`(50 / 100) * 40 = 20`
So statement c) is not true.
d) 50% of 110 is 60.
To calculate 50% of 110, you divide 110 by 100 and then multiply it by 50.
`(110 / 100) * 50 = 55`
So statement d) is not true.
e) 60% of 60 is 360.
To calculate 60% of 60, you divide 60 by 100 and then multiply it by 60.
`(60 / 100) * 60 = 36`
So statement e) is not true.
Therefore, the incorrect statements are: c) 40% of 50 is 15, d) 50% of 110 is 60, and e) 60% of 60 is 360.