1 
In a proportion a:b:c:d, and d are called: 
 A. Means
 B. Extremes
 C. Third proportional
 D. None of these

2 
If a : b = c : d, then a + b : a  b = c + d : c  d is called theorem of: 
 A. ComponendoDividendo
 B. <span style="fontsize: 10.5pt; lineheight: 107%; fontfamily: Arial, "sansserif"; backgroundimage: initial; backgroundposition: initial; backgroundsize: initial; backgroundrepeat: initial; backgroundattachment: initial; backgroundorigin: initial; backgroundclip: initial;">Invertendo</span>
 C. Dividendo
 D. Componendo

3 
K is known as: 
 A. Sign of proportionality
 B. Extremes
 C. Constant of proportionality
 D. Means

4 
If y = 8 and x = 4, then k = xy, we get k = 

5 
If a : b = c :d, than a  b : b = c  d : d is called theorem of : 
 A. Componendo
 B. Dividendo
 C. (a) & ( b)
 D. <span style="fontsize: 10.5pt; lineheight: 107%; fontfamily: Arial, "sansserif"; backgroundimage: initial; backgroundposition: initial; backgroundsize: initial; backgroundrepeat: initial; backgroundattachment: initial; backgroundorigin: initial; backgroundclip: initial;">Invertendo</span>

6 
If Y is directly proportional to x it can be written as: 

7 
In a ratio a:b, a is called: 
 A. Relation
 B. Antecedent
 C. Consequent
 D. None of these

8 
The important thing in ratio is: 
 A. Value of the elements
 B. Orderof the elements
 C. Unitsof the elements
 D. Quantityof the elements

9 
Find x in proportion 4:x::5:15 

10 
If y = kx, x = 7 and y = 6, then k = 
