Grade 11 - More exercises : Answers.

Interest , appreciation and depreciation.

1.1
a = 5 503,75 ; b = 36 953,75
1.2
c = 39 816 ; d = 150 416
1.3
e = 137,5 ; f = 1 387,50
1.4
g = 6 ; h = 6 216
1.5
j = 25,2 ; k = 15 750
1.6
m = 9 ; n = 5 778
1.7
p = 1 250 000 ; q = 1 531 250
1.8
r = 1 050 ; s = 1 302
1.9
t = 2 500 ; u = 3 550
1.10
v = 5 ; w = 7 706,25
1.11
x = 2 ; y = 14 697
1.12
z = 9 ; aa = 224 358,80
1.13
ab = 12 500 ; ac = 16 250
2.1
a = 1 654,45 ; b = 14 904,45
2.2
c = 23 431,78 ; d = 88 431,78
2.3
e = 12,5 ; f = 119 165,20
2.4
g = 22 ; h = 11 535,46
2.5
j = 8,5 ; k = 87 838,18
2.6
m = 7,5 ; n = 34 139 634
2.7
p = 15 000 ; q = 7 267,58
2.8
r = 1 250 600 ; s = 2 811 380
2.9
t = 82 000 ; u = 73 899,01
2.10
v = 230 000 ; w = 1 921 957
2.11
x = 18 ; y = 336 392,5
2.12
z = 9 ; aa = 43 784,58
2.13
ab = 2 500 600 ; ac = 921 643,8
3.
75 005,23
4.
434 388,5
5.
5 304,85
6.
413 526
7.1
$5 817,59
7.2
1970: R68 000 ; 2009 : R60 619,29
7.3
10,85
8.
11,5%
9.
15%
10.
Option 1 is best - lowest total cost, R2 565.
     
  
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