Study the following line graph and answer the questions based on it. 

1. ANSWERS  : D  

Explanation-   Required difference = (128000 - 107000) = 21000.

2. ANSWERS  : C  

Explanation-  From the line-graph it is clear that the productions of Company X in the   years 1997, 1998, 1999, 2000, 2001 and 2002 are 119000, 99000, 141000, 78000, 120000 and 159000 and those of Company Y are 139000, 120000,100000, 128000, 107000 and 148000 respectively. 

Total production of Company X from 1997 to 2002 

= 119000 + 99000 + 141000 + 78000 + 120000 + 159000 

= 716000. 

and total production of Company Y from 1997 to 2002 

= 139000 + 120000 + 100000 + 128000 + 107000 + 148000 

= 742000. 

Difference = (742000 - 716000) = 26000.

3. ANSWERS  : A 

Explanation-  Average number of vehicles manufactured by Company X  

= $\frac{1}{6}\times \left(119000+99000+141000+78000+120000+159000\right)$ 

 = 119333.

4. ANSWERS  : D  

Explanation-   The difference between the productions of Companies X and Y in various years are: 

 For 1997 (139000 - 119000)  = 20000. 

 For 1998 (120000 - 99000)  = 21000. 

 For 1999 (141000 - 100000)  = 41000. 

 For 2000 (128000 - 78000) = 50000. 

 For 2001 (120000 - 107000) = 13000. 

 For 2002 (159000 - 148000) = 11000. 

 Clearly, maximum difference was in 2000.

5. ANSWERS  :  B

Explanation  - Required percentage= $\frac{128000}{78000}\times 100$ % = 164%