Directions (Q. 1-5): What will come in place of the question mark (?) in the following number series?
1. 8    10    18    44    124    (?)
(1) 344
(2) 366
(3) 354
(4) 356
(5) None of these

2. 13    25    61    121    205    (?)
(1) 323
(2) 326
(3) 324
(4) 313
(5) None of these

3. 656    352    200    124    86    (?)
(1) 37
(2) 59
(3) 62
(4) 57
(5) None of these

4. 454    472    445    463    436    (?)
(1) 436
(2) 456
(3) 454
(4) 434
(5) None of these

5. 12    18    36    102    360    (?)
(1) 1364
(2) 1386
(3) 1384
(4) 1376
(5) None of these

DIRECTIONS (6-10) - Study the information given and answer the following questions.

6. Between 1995 and 2000, in which year has the av-erage employment per factory shown an increment compared to previous year, but decreased in the next year?
(1) 1996
(2) 1997
(3) 1998
(4) 1999
(5) None of these

7. If in 1996, 20,100 factories had 659 employments on an average, the remaining factories had an average employment of:
(1) 559
(2) 509
(3) 584
(4) 534
(5) None of these

8. The total employment in 1999 is how many times to that in 1996?
(1) 1.45
(2) 1.48
(3) 1.6
(4) 1.42
(5) None of these

9. In which of the following five-year period, number of factories has shown maximum increase?
(1) 1980-85
(2) 1985-90
(3) 1990-95
(4) 1995-00
(5) None of these

10. Among the given period, in how many years has the trend of the average employment per factory not changed with respect to the previous year's change?
(1) Two
(2) Three
(3) Four
(4) Can't be determined
(5) None of these

ANSWERS

6. (4) in 1999, average employment per factory is greater than 1998 and less than 2000.

7. (2), in 1996, for 20100 factories , employees = 13,245,900; average = 609, total employees = 18,361,350. So average for remaining factories = 509.

8. (1) , total employment in 1999= 36240 x 736.
Total employment in 1996 = 609 x 30150,
Ratio =  (36240×736)/(30150×609)=1.45

9. (4) From the figure it can be seen that the maximum increase in the number of factories is in 1995-2000.

10. (4) , we do not have year wise data in between 1975- 1980 & similarly between 1980-1985,etc.