PERCENT OF A NUMBER

PROBLEMS

Back to the Lesson

To see the answer, pass your mouse over the colored area.
To cover the answer again, click "Refresh" ("Reload").
Do the problem yourself first!

1.  How much is 18.6% of $100?  $18.60

2.  A store paid $100 for a dress. It raised the selling price by 35%.  But
2.  one week later it lowered that price by 10%.  What was the final
2.  selling price?

$121.50.  For, 35% of $100 is $35, so the selling price went to $135. 10% of that is $13.50.  And $135 − $13.50 = $121.50.

3.  The student should know the fractional equivalent of the following.
 1.  a) 50%  =  1
2
  b) 25%  =  1
4
  c) 75%  =  3
4
 1.  d) 12½%  =  1
8
   1.  e)  33 1
3
%  =  1
3
     1.  f)  66 2
3
%  =  2
3
 1.  g)  10%  =   1 
10
  h)  30%  =   3 
10
  i)  70%  =   7 
10
  j)  90%  =   9 
10
 
 1.  k)  20%  =  1
5
  l)  40%  =  2
5
  m)  60%  =  3
5
  n)  80%  =  4
5

4.  Write each of the following as a fraction, or a whole number, or a
3.  mixed number.

  1.  a)  79%  =   79 
100
  b)  3%  =    3  
100
  c)  60%  =  3
5
2.   d)  100% = 1     1.  e)  300% = 3   f) 350%  = 3 1
2
2.   g)  375%  = 3 3
4
  h)  333 1
3
% = 3 1
3
  i)  480%  = 4 4
5

15.  How much is

  a)  75% of $208?  $156   b)  250% of $16?  $40
 
  c)  325% of 200?  $650   d)  75% of $37.60?  $28.20
 
  e)  675% of 400?  $2,700   f)  12.5% of $96.24?  $12.03
 
  g)  30% of $62?  $18.60   h)  40% of $96?  $38.40
 
  i)  40% of $55?  $22.00   j)  20% of $148?  $29.60
 
  k)  20% of $150?  $30.00   l)  70% of $312?  $218.40

16.  Thirds.  How much is

  a)  33 1
3
% of 81?  27   b)  66 2
3
% of 81?  54
 
  c)  33 1
3
% of $32.40?  $10.80   d)  66 2
3
% of $32.40?  $21.60

17.  Calculator problems.  How much is

  a)  33 1
3
% of $706.14?  $235.38   b)  66 2
3
% of $706.14?  $470.76
 
  c)  33 1
3
% of $91.15?  $30.38   d)  66 2
3
% of $91.15?  $60.77

Continue on to the next section.

or

Return to the previous section.

Table of Contents


Copyright © 2017 Lawrence Spector

Questions or comments?

E-mail:  themathpage@yandex.com

Private tutoring available.