The first three terms of an A.P. are 3y − 1, 3y + 5 and 5y + 1 respectively. Then, the value of y is :

1. 1

2. 5

3. 8

4. 3

The 8th term from the end of the A.P. 7, 10, 13, …, 184 is:

1. 157

2. 160

3. 163

4. 166

Case Study II

The production of TV sets in a factory increases uniformly by a fixed number every year.
It produced 16000 sets in the 6th year and 22600 in the 9th year.

Based on this information, answer the following questions:

1. The production of the TV sets during the first year was :
   (a) 4000
   (b) 4500
   (c) 5000
   (d) 5500

2. What was the uniform increase in the production of TV sets every year?
   (a) 1800
   (b) 2400
   (c) 1600
   (d) 2200

3. The production of the TV sets during the 8th year was:
   (a) 20000
   (b) 20400
   (c) 21200
   (d) 22800

4. The total production of the TV sets during first 6 years was:
   (a) 56000
   (b) 72000
   (c) 66000
   (d) 63000

5. The average production of the TV sets during first 6 years was:
   (a) 10500
   (b) 11000
   (c) 11500
   (d) 12000