Fractions And Percentages Worksheet Page 28
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28MEP Pupil Text 11
8.
A sum is invested in a building society at 4% interest per annum and after 3 years
the value of the investment is £562.43. How much was originally invested?
9.
Jenny's pocket money is increased by 25% each year on her birthday. When she is
16 years old, her pocket money is £12.86 per week. How much did she get per
week when she was:
(a)
15 years old
(b)
13 years old
(c)
10 years old?
10.
Jai buys a car, keeps it for 4 years and then sells it for £2100. If the value of the car
has depreciated by 12% per year, how much did Jai originally pay for the car?
Information
Did you know that in 1996 a Japanese mathematician (using a computer!) took just
π
5 days to compute the value of
to over 6 billion digits.
Just For Fun
1
1
1
The sum of
,
and
of the enrolment of School A is exactly the enrolment of
2
3
4
School B.
1
1
1
1
The sum of
,
,
and
of the enrolment of School A is exactly the enrolment of
5
6
7
8
School C.
What are the enrolments of these three schools, assuming that no school has more than
1 000 pupils?
Information
The Chinese represented negative numbers by indicating them in red and the Hindus
denoted them by putting a circle or a dot over the numbers. The Chinese had knowledge
of negative numbers as early as 200 BC and the Hindus as early as the 7th century.
In Europe, as late as the 16th century, some scholars still regarded negative numbers as
absurd. In 1545, Cardano (1501–1570), an Italian scholar, called positive numbers 'true'
and negative numbers 'fictitious' numbers.
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