Question

1. The first figure is the cost price and the second figure is the selling
price. Calculate the percentage profit or loss in each case.
(a) $20, $25
(b) $400, $500
(c) $60, $ 54
10
(d) $9000, $10 800
(e) $460, $598
(f) $512, $550.40
(g) $45, $39.60
(h) 50¢, 23€
2. A car dealer buys a car for $500, gives it a clean, and then sells it
for $640. What is the percentage profit?
3. A damaged carpet which cost $180 when new, is sold for $100.
What is the percentage loss?
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4. During the first four weeks of her life, a baby girl increases herning 12
weight from 3.2 kg to 4.7 kg. What percentage increase does this
represent? (Give your answer to 3 sig. fig.)
5. When sales tax is added to the cost of a car tyre, its price increases
from $16.50 to $18.48. What is the rate at which sales tax is charged?
d)
6. In order to increase sales, the price of a Concorde airliner is reduced
from £30 000 000 to £28 400 000. What percentage reduction is this?
vou
7. Find the cost price of the following:
(a) selling price $55, profit 10% (b) selling price $558, profit 24%
(c) selling price $680, loss 15% (d) selling price $11.78, loss 5%
8. An oven is sold for $600, thereby making a profit of 20%, on the
cost price. What was the cost price?
9. A pair of jeans is sold for $15, thereby making a profit of 25% on 21
the cost price. What was the cost price? irou wounds 100
0. A book is sold for $5.40, at a profit of 8% on the cost price. What isol
was the cost price?
nu OREZ bertso asi oda annoy 10A
1. A can of worms is sold for 48¢, incurring a loss of 20%. What was ist
the cost price?
2. A car, which failed its safety test, was sold for $1430, thereby
making a loss of 35% on the cost price. What was the cost price?
3. If an employer reduces the working week from 40 hours to
35 hours, with no loss of weekly pay, calculate the percentages adia
increase in the hourly rate of pay.
The rental for a television set changed from $80 per year to $8 per
month. What is the percentage increase in the yearly rental?
. A greengrocer sells a melon at a profit of 37% on the price he pays
for it. What is the ratio of the cost price to the selling price?
. Given that G= ab, find the percentage increase in G when both a
and b increase by 10%.
kx
Given that T =
find the percentage increase in T when k, x and
у
y all increase by 20%.
00:1) d llwasdarli ti vsto
Forma No 3/A
"1002 x on
02​

Answer 1

Answer:

1) 5/20 *100=25 %

2)100/400*100 =25%