Grade 11 - More exercises.
Cost-price, selling-price and profit.
1. The table below shows cost-price, selling-price, profit margin and profit for a
number of articles.
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
Cost-price
23,10 871,20
1 186 43,6
k
n
q
s
Selling-price a
c
e
g
63,18
515,21
171,82
61,07
Profit margin (%) 45
40
f
h
m
p
38,5 14,2
Profit
b
d
395,29
10,90
34,46
202,96
r t
1.9
1.10
1.11
1.12
1.13
1.14
1.15
1.16
Cost-price
2,75
8,36
y
aa
cc
22,39
hh
27.08
Selling-price
u
w
14 424,74
39,89
524,20
ee
65,24
kk
Profit margin (%) 33
x
z
40
320
65
gg 250
Profit
v
2,76
1 881,49
bb
dd
ff
21,16 mm
2.
The table below shows the cost-price, selling price,
profit margin, profit and discount given for
a number of articles. Calculate the value of
each letter in the table:
Number
2.1
2.2
2.3
2.4
2.5
Cost-price
58,23
123,65
2,08
13,45
86
Selling price
78,61
173,11
2,77
24,88
139,32
Profit margin
35
40
33,33
t
y
Profit
a
f
n
11,43
53,32
Discount
b
g
p
2,49
16,72
Discount percentage
10
12
15
u
z
New selling price
c
h
q
v
aa
New profit
d
k
r
w
bb
New profit margin
e
m
s
x
cc
Number
2.6
2.7
2.8
2.9
Cost-price
207
832,42
906,88
8,64
Selling price
869,40
kk
rr
ww
Profit margin
dd
150
280
55
Profit
662,40
1 248,63
2 539,26
4,75
Discount
130,41
mm
ss
xx
Discount percentage
ee
25
32
5
New selling price
ff
nn
tt
yy
New profit
gg
pp
uu
zz
New profit margin
hh
qq
vv
ab
| 3. |
A shopkeeper sells a certain item at a profit of 10%. The cost-price of the item is R18,52. |
| 3.1.1 |
Calculate the selling price. |
| 3.1.2 |
Calculate the profit. |
| 3.2 |
The cost-price of the item increases by 70%. |
| 3.2.1 |
Calculate the new cost-price. |
| 3.2.2 |
Calculate the new selling price. |
| 3.2.3 |
Calculate the new profit. |
| |
|
| 4. |
The price of petrol is R5,40 per litre. The price is increased to R5,75. |
| 4.1 |
Calculate the increase in price. |
| 4.2 |
Calculate the percentage increase in the price of petrol. |
| 4.3 |
The price of petrol is again increased by 12,2%. Calculate the new price. |
| |
|
| 5. |
The cost per unit of electricity in a certain area is 28 cents. A household uses 850 units |
| |
per month. The cost of electricity is increased by 8,75%. Calculate |
| 5.1 |
the new unit-price. |
| 5.2 |
the new cost for the household. |
| |
|
| 6. |
The price of electricity is 26 cents per unit. The price is now increased by 13,5%. |
| 6.1 |
Calculate the new price per unit. |
| 6.2 |
The following year consumers are given two options. Show your calculations to determine |
| |
which is the better option for the consumer. |
| |
Option 1: An increase of 30% in the price this year followed by an increase of 20% the following year. |
| |
Option 2: An increase of 50% this year followed by no increase the following year. |
| |
|
| 7. |
A company uses 8 000 litres of diesel per month. The cost of diesel is R6,80 per litre. |
| 7.1 |
Calculate the monthly cost of the diesel. |
| |
The cost of diesel is increased by 45 cents per litre. |
| 7.2 |
Calculate the new price of the diesel. |
| 7.3 |
Calculate the new monthly cost for the fuel. |
| 7.4 |
Calculate the percentage increase in the price of diesel and of the monthly cost of the fuel. |