#### Percentages

1. Write the following percentages as fractions in their simplest form:
1.1
 30% 1.2    45% 1.3    82% 1.4    3% 1.5    14% 1.6    230

2. Write the following decimal fractions as percentages:
2.1
 0,2 2.2    0,35 2.3    0,85 2.4    0,345 2.5    0,075 2.6    3,06

3. Calculate
3.1 36% of 3,26 m                                                        3.2     45% of 215 marks
3.3 14% of R288,34                                                      3.4    75% of 320 450 liters
3.5 11% of R805 912                                                    3.6     8% of 320 people

4. Write the first number as a percentage of the second number:
4.1 18 ; 50                 4.2   314 ; 862                 4.3    0,026 ; 1,197                  4.4    21,47 ; 78,04

5. Peter scored the following marks in tests and tasks:
Subject               Mathematical Literacy       English       History        Accounting
Mark                              26                                42                 21                18
Maximum                      40                                60                 70                45

5.1 Convert each mark to a percentage.
5.2 What was his highest mark?
5.3 Did he fail any subject, if he has to obtain 40% to pass? Write down the name(s) and
percentage(s) of the failed subject(s).

6. An agent receives a commission on his sales. Calculate the value of the letters in the table:

 number 6.1 6.2 6.3 6.4 6.5

 Amount 450 320 c 450 650 965 720

 % commission 12 b 42 3,5 e

 commission a 89,60 5061 d 73 394,72

7. The numbers in the table concern the percentage change that the "old" number undergoes
to form the "new" number. Calculate the value of each letter.

 Number 7.1 7.2 7.3 7.4 7.5

 "Old" number 48 186 c 21,45 67

 "New" number 62 b 286 d 54

 % change a 145,16 16,73 30,72 e

 Number 7.6 7.7 7.8 7.9 7.1

 "Old" number 245 g 67,85 987,056 87,61

 "New" number f 1198 66,04 m 77,94

 % change -2,86 -0,58 h 1,21 n