Question 1.
In a certain code, RIPPLE is written as 613382 and LIFE is written as 8192. How is PILLER written in that code? [1 Mark, May 2018]
(a) 318826
(b) 318286
(c) 618826
(d) 338816
Solution:
(a)

Hence code of PILLER is 318826.

Question 2.
In a certain code ‘256’ mean ‘you are good’, ‘637’ means ‘we are bad’ and ‘358’ means ‘good and bad’. Which of the following represents ‘and’ in that code? [1 Mark, May 2018]
(a) 2
(b) 5
(c) 8
(d) 3
Solution:
(c)
256 means ‘Your are good’
637 means ‘We are Bad’
358 means ‘Good and Bad’
Here, word “ good “ is common in 1 st & 3rd sentence and 5 is common in 1 st & 3rd. So, Code of good is 5 . BAD is common in 2nd & 3rd. Hence Code of‘bad ’ is 3. So, Code of “and” is 8.

Question 3.

If LOSE is coded as 1357 and GAIN is coded as 2468, what do figure 82146 for?
(a) NGLAI
(b) NGLIA
(c) GNLIA
(d) GNLA
Solution:
(a)
Code for 82146 is NGLAI

Question 4.
If PLAY is coded as 8123 and RHYME is coded as 49367. What will be code of MALE ? [1 Mark, Nov. 2018]
(a) 6217
(b) 6198
(c) 6395
(d) 6285
Solution:
(a)

Question 5.

Find out the next number in the following series 7,1 1, 13, 17, 19, 23, 25, 29? [1 Mark, Nov. 2018]
(a) 30
(b) 31
(c) 32
(d) 33
Solution:
(b) Given series

Question 6.
If HONEY is coded as JQPGA, which word is code as VCTIGVU ? [1 Mark, Nov. 2018]
(a) CARPETS
(b) TRAPETS
(c) TARGETS
(d) UMBRELU
Solution:
(c)

Question 7.
Find odd man out of the following series 15, 21, 63, 81, 69 [1 Mark, Nov. 2018]
(a) 15
(b) 21
(c) 63
(d) 81
Solution:
(d) 15, 21, 63, 81, 69
In this series only 81 is a Perfect square.

Question 8.
Find odd man out of the following series 7, 9, 13, 17, 19 [1 Mark, Nov. 2018]
(a) 1
(b) 9
(c) 19
(d) 13
Solution:
(b) 7, 9, 13, 17, 19
Since only 9 is a perfect square. So, 9 is the odd man out.
Note :- If 11 is used at the place of 9, we get a perfect series.

Question 9.
7, 23, 47, 119, 167 [1 Mark, June 2019]
(a) 211
(b) 223
(c) 287
(d) 319
Solution:
(c)
7, 23, 47, 119, 167, 287
3² – 2 = 1
5² – 2 = 23
7² – 2 = 41
11² – 2 = 119
13² – 2 = 167
17² – 2 = 287

Question 10.

Which of the following is odd one 4, 12, 44, 176, 890? [1 Mark, June 2019]
(a) 4
(b) 12
(c) 44
(d) 176
Solution:
(c)
4, 12, 44, 176, 890,
4 × 2 + 4= 12
12 × 3 + 6 = 42
42 × 4 + 8 = 176
176 × 5 + 10 = 890

Question 11.
If in a certain language, MADRAS is coded as NBESBT. How is BOMBAY coded in that language ? [1 Mark, June 2019]
(a) CPNCBX
(b) CPNCBZ
(c) CPOCBZ
(d) CQOCBZ
Solution :
(b)

Question 12.
Which of the following is odd one? [1 Mark, June 2019]
(a) CEHL
(b) KMPT
(c) OQTX
(d) NPSV
Solution:
(d