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Series, coding and analogies

Written by Bilal Siddiqui (Logical Reasoning)

Government jobs · Mental ability · 22 questions

Name: ____________________ Date: ____________

Find the next number: 2, 6, 12, 20, 30, ?
- A 36
- B 42
- C 44
- D 40
Find the next number: 3, 6, 12, 24, ?
- A 48
- B 30
- C 42
- D 36
Find the odd one out: 16, 25, 36, 48, 64
- A 64
- B 25
- C 16
- D 48
Doctor is to hospital as teacher is to:
- A Book
- B Student
- C Class
- D School
If CAT is coded as DBU, how is DOG coded?
- A EPH
- B DPH
- C EOH
- D FQI
Find the next letter: A, C, F, J, ?
- A O
- B N
- C M
- D P
Which one is different: Tiger, Lion, Leopard, Horse?
- A Leopard
- B Lion
- C Tiger
- D Horse
Find the next number: 1, 4, 9, 16, ?
- A 25
- B 36
- C 20
- D 24
If 'pen' is called 'book', 'book' is called 'bag' and 'bag' is called 'desk', what do you write with?
- A Bag
- B Book
- C Pen
- D Desk
Complete: 5, 10, 20, 40, ?
- A 60
- B 100
- C 80
- D 50
Find the next number: 7, 14, 28, 56, ?
- A 84
- B 112
- C 70
- D 98
Find the next number: 100, 91, 82, 73, ?
- A 65
- B 60
- C 63
- D 64
Find the odd one out: 3, 5, 7, 9, 11
- A 3
- B 5
- C 9
- D 11
Hand is to glove as foot is to:
- A Sock
- B Toe
- C Leg
- D Shoe
If A = 1, B = 2, then the value of CAB is:
- A 321
- B 123
- C 312
- D 213
If MONDAY is coded as NPOEBZ, SUNDAY is coded as:
- A TVOEBZ
- B RTMCZX
- C TVNEBZ
- D TVOFBZ
Find the missing number: 2, 5, 10, 17, 26, ?
- A 36
- B 35
- C 39
- D 37
Which word is different: Apple, Mango, Potato, Banana?
- A Apple
- B Potato
- C Mango
- D Banana
Day is to night as light is to:
- A Sun
- B Darkness
- C Lamp
- D Bright
Find the next letters: AB, CD, EF, GH, ?
- A KL
- B JK
- C IJ
- D HI
If 3 + 4 = 24 and 5 + 6 = 60 by the rule (a x b x 2), then 2 + 7 = ?
- A 14
- B 18
- C 28
- D 30
Find the next number: 1, 1, 2, 3, 5, 8, ?
- A 11
- B 10
- C 12
- D 13

Answer key

1. B, 2. A, 3. D, 4. D, 5. A, 6. A, 7. D, 8. A, 9. B, 10. C, 11. B, 12. D, 13. C, 14. A, 15. C, 16. A, 17. D, 18. B, 19. B, 20. C, 21. C, 22. D

The differences are 4, 6, 8, 10, so the next difference is 12 and 30 + 12 = 42.
Each term is double the one before.
All others are perfect squares.
A doctor works in a hospital, and a teacher works in a school.
Each letter moves one place forward.
The gaps are 2, 3, 4, so the next gap is 5, and J + 5 = O.
The first three are big cats, and the horse is not.
These are squares: 1², 2², 3², 4², and the next is 5² = 25.
You write with a pen, and in this code a pen is called a book.
Each number is double the one before.
Each number is double the one before.
Each term is 9 less than the one before.
All the others are prime numbers.
A glove covers a hand, and a sock covers a foot.
C is 3, A is 1 and B is 2.
Each letter moves one place forward.
The terms are n² + 1: 1² + 1, 2² + 1, ... so 6² + 1 = 37.
A potato is a vegetable and the others are fruits.
They are opposites.
Each pair continues the alphabet.
2 x 7 x 2 = 28.
This is the Fibonacci series, each term is the sum of the previous two.