Set No -08: Mathematical Reasoning MCQ’S 

1. Complete the series: 2, 14, 56, 152, 342, ?
   A) 684
   B) 686
   C) 688
   D) 690
2. 18 : 5832 :: 20 : ?
   A) 8000
   B) 10000
   C) 16000
   D) 32000
3. Find the missing number: 9, 49, 169, 361, 961, ?
   A) 1369
   B) 1681
   C) 1849
   D) 2209
4. A sum becomes 8 times in 6 years at compound interest. In how many years will it become 64 times?
   A) 12
   B) 15
   C) 18
   D) 20
5. A train passes a 400 m platform in 40 seconds and a pole in 16 seconds. What is the length of the train?
   A) 250 m
   B) 300 m
   C) 350 m
   D) 400 m
6. Complete the series: 1, 9, 36, 100, 225, ?
   A) 441
   B) 484
   C) 529
   D) 576
7. 19 : 6859 :: 23 : ?
   A) 12167
   B) 12167
   C) 14049
   D) 12167
8. If 18% of a number is 72, what is 150% of that number?
   A) 500
   B) 600
   C) 650
   D) 700
9. Find the odd one out: 1331, 2197, 3375, 4096, 4913
   A) 4096
   B) 3375
   C) 4913
   D) 2197
10. A and B finish a job in 12 days, B and C in 15 days, C and A in 20 days. How long will all three take together?
    A) 9 days
    B) 10 days
    C) 11 days
    D) 12 days
11. 15 : 759375 :: 17 : ?
    A) 1419857
    B) 4100625
    C) 1419857
    D) 24137569
12. The ratio of ages of two persons is 4:3. Eight years ago, the ratio was 10:7. What are their present ages?
    A) 32, 24
    B) 36, 27
    C) 40, 30
    D) 44, 33
13. Complete the series: 3, 8, 18, 38, 78, ?
    A) 158
    B) 160
    C) 162
    D) 164
14. What replaces the ? : 6→7776, 7→16807, 8→32768, 9→59049, 10→?
    A) 100000
    B) 200000
    C) 500000
    D) 1000000
15. 1728 : 12 :: 2197 : ?
    A) 13
    B) 14
    C) 15
    D) 16
16. A cistern is filled by pipe A in 9 hours and by B in 12 hours. Leak C empties it in 18 hours. All opened together, when will it be full?
    A) 7.2 hours
    B) 8 hours
    C) 9 hours
    D) 10 hours
17. Find the missing number: 12, 35, 81, 173, 357, ?
    A) 725
    B) 727
    C) 729
    D) 731
18. A defective clock gains 1 minute every 30 minutes. If set right at 12 noon, what time will it show at 6 PM?
    A) 6:12 PM
    B) 6:24 PM
    C) 6:36 PM
    D) 6:48 PM
19. 100 : 10 :: 343 : ?
    A) 7
    B) 14
    C) 21
    D) 49
20. In an 8×8×8 painted cube, how many small cubes have at most one face painted?
    A) 376
    B) 392
    C) 416
    D) 488

Answers (Set 9)

1. B) 686
2. A) 8000
3. C) 1849
4. C) 18
5. B) 300 m
6. A) 441
7. C) 14049
8. B) 600
9. A) 4096
10. B) 10 days
11. A) 1419857
12. A) 32, 24
13. A) 158
14. A) 100000
15. A) 13
16. A) 7.2 hours
17. A) 725
18. A) 6:12 PM
19. A) 7
20. B) 392