Changes in paid wages

Employees in a company are put into four wage groups. During a three-year period the numbers employed in each group and the average weekly wage are as follows.

Year 1

Year 2

Year 3

Group

Number

Wage

Number

Wage

Number

Wage

1

45

125

55

133

60

143

2

122

205

125

211

132

224

3

63

245

66

268

71

293

4

7

408

9

473

13

521

Use different indices to describe the changes in wages paid and the numbers employed.

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