Decimals, Percents, Ratios,
Fractions
1. Out of 473 people, 39%
have black hair. How many have black hair2. 78% of women voters say they will vote for Hillary Clinton. What percent isn’t voting for her?
3. There are 365 days in a year. There are 52 Saturdays and 52 Sundays. What percent of the year is weekend?
4. There are 8 planets.
50% of them are made of rock. How many are made of rock?
5. There are 173 seats on
an airplane. 17 of them are in first class. What percent of the seating is
second class?
6. Alice got 17.5 out of
34 on her test. What was her percentage?
7. There are 9854 taxis
in Toronto. 2453 of them have failed a safety inspection. What percentage have
failed s safety inspection.
8. There are 7 000 0000
0000 people in the world. 320 000 000 of them are in the United States. What
percentage of the world lives in the United States?
9. 18% of the world
population lives in China. How many people live in China?
10. The ratio of males
teachers to female teachers in a nearby school if 3:5. There are 48 teachers.
How many are male?
11. Convert to a
fraction:
a) .17b) .3
c) .5
d) .8
e) 1
f) .42
g) .36
h) .75
12. Convert to a decimal
a)
¾b) 7/8
c) 9/18
d) 47/100
e) 32/64
f) 17/100
