=Exercise 3u =
decimal fraction.
1. Express 16 % as a
2. Express a s a percentage.
3. Write 0.845 as a percentage.
table:
4. Copy and complete the following
Table 3.9
Decimal
CommonPercentage fraction
fraction
(a)
(b) 45%
(c) 0.35
5. A football team won 67% of their matches and
drew 24% of them. What percentage of the
matches did they lose?
6. In a school, 33o of the pupils study Biology
and 16% study Chemistry. If 9% study both
sciences, what percentage does not study eitheer
subject?
7. Express 985 cm as a percentage of 1 1.
8. A Mathematies book has 360 pages, of which
50% are on Algebra, 20% on Geometry and the
remainder on Arithmetic. How many pages of
Arithmetic are there in the book?
9. There are 530 students in my school and 30%
are footballers. How many students are not
footballers?
10. The price of a car that cost $27 000 last year
increased by 12.5% on Ist January this year.
What amount is its present price?
11. A school employs 30 teachers. How many
tcachers will there be if there is a 10% reduction?
12. Evaluate 22% of 40m.
13. Express 4 mm as a percentage of 3 cm.
14. There are 120 shops at a mall, of which 35% sell
clothes. How many shops do not sell clothes?
15. Calculate the value of 15% of $350.
16. Copy and complete the following table:
Table 3.10
Common Decimal
Percentage fraction
fraction
(a) 8
(b) 65%
(c) 0.94
17. In an election, 38% of the electorate voted
for Mrs. Khan, 45% for Mr. Sobers and the
remainder voted for Miss Damme. What per-
there were
centage voted for Miss Damme if
electorate
only three candidates and 5% of the
did not vote?
18. Copy and complete the following table:
Table 3.11
Decimal
Common Percentage
fraction fraction
(a)
70%
(b)
(c) 0.85
19. Fifeen percent of the persons taking a driving
testfailed to pass the first time. Whal percentage
passed first time?
20, A concen is attended by 2 500 people. If 47%
are adult males, how
are adult females and 32%
many children attended?
21. There are 90 girls in the third year, 25 of whom
study biology. What percentuge of third yenr
girls study biology?
22. If 42% of a crowd of 38 500 at a football match
were females, how many females
attended?
23. A Mathematics book has 360 pages, of which
40% are on Algebra, 35% on Geometry and
the
n? remainder on Arithmetic. How many pages on
arithmetic are there in the book?
24. In a Mathematics test, Mary scored 27 of a
possible 60. What amount was her
percentage
score?
ll
25. A Science book has 428 pages, of which 47%
are on Biology. 28% on Chemistry and the
remainder on Physics. How many pages on
Physics are there?
26. There are 150 shops at a mall, 56%o of which
sell toys. How many shops do not sell toys?
27. Determine 22,% of 90 m.
28. Express 4 mm as a percentage of 9 cm.
29. There are 120 shops at a mall, of which 65%
sell clothes. How many shops do not sell
clothes?
30. In an English test, Crissy scored 49 of a
possible 60. What amount was her percentage
mark?
