WHAT PERCENT?
THE METHOD OF PROPORTIONS

PROBLEMS (2)

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17.  Frequent percents.  The student should know the percent
17.  equivalent of the following.

  17.  a)   1
2
 = 50%   b)   1
3
 = 33 1
3
%   c)   2
3
 = 66 2
3
%
  17.  d)   1
4
 = 25%   e)   3
4
 = 75%   f)   1
8
 = 12½%
  17.  g)   1
5
 = 20%   h)   2
5
 = 40%   i)   3
5
 = 60%   j)   4
5
 = 80%
  17.  k)    1 
10
 = 10% l)    3 
10
 = 30%   m)    7 
10
 = 70%   n)    9 
10
 = 90%
  17.  o)     1  
100
 = 1%   p)     2  
100
 = 2%    q)    21 
100
 = 21%   r)    99 
100
 = 99%

18.  Write the fraction in lowest terms or the whole number or the
18.  mixed number that corresponds to each of the following.

a)   12 is what percent of 18?   2
3
a)   Now answer that question.   66 2
3
%
b)   What percent of 60 is 12?   1
5
b)   Now answer that question.   20%
c)   What percent of 20 is 15?   3
4
b)   Now answer that question.   75%
d)   15 is what percent of 50?    3 
10
b)   Now answer that question.   30%
e)   What percent of 9 is 18?   2
b)   Now answer that question.   200%
f)   27 is what percent of 18?   3
2
f)   Now answer that question.   150%
g)   12 is what percent of 4?   3
f)   Now answer that question.   300%
h)   30 is what percent of 12?  
f)   Now answer that question.   250%
i)   What percent of 8 is 42?  
i)   Now answer that question.   525%
j)   What percent of 6 is 26?   4 1
3
j)   Now answer that question.   433 1
3
%

19.  Clearing of decimals

  a)   .2 is what percent of 5?  4%
 
  b)   1.5 is what percent of 2?  75%
 
  c)   2 is what percent of 2.5?   80%
 
  d)   What percent of 5 is 7.5?  150%
 
  e)   What percent of 2 is 2.5?   125%
 
  f)   What percent of 4 is .5?  12.5%
  20.  With a calculator, how do we interpret the fraction  Amount
   Base
 ? 

Amount ÷ Base

21.  Calculator problem.  Express each fraction as a percent.  Round
21.  off to one decimal place.

   21.  a)   14
15
 = 93.3%   b)   15
14
 = 107.1%   c)    1 
11
 = 9.1%

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