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Worked Examples

Example-1
35 : 24 = 63 : ___.
  1. 38
  2. 50
  3. 48
  4. 80
  5. 26
Solution
35 : 24 = 63 : ____
     
62–1   52–1   82–1   72–1

Answer: 72 – 1 = 48 Choice (3)
 
 
Example-2
25 : 62 = 123 : ___.
  1. 196
  2. 167
  3. 218
  4. 214
  5. 341
Solution
25 : 62 = 123 : ____
     
33–2   43–2   53–2   63–2

Answer: 63 – 1 = 214 Choice (4)
 
 
Example-3
8 : 28 = 15 : ___.
  1. 36
  2. 64
  3. 49
  4. 60
  5. 65
Solution
8 : 28 = 15 : ____
     
32–1   33+1   42–1   43+1

Answer: 43 + 1 = 64 + 1 = 65 Choice (4)
 
 
Example-4
23 : 31 = 41 : ___.
  1. 46
  2. 47
  3. 53
  4. 45
  5. None
Solution
The given numbers are alternate prime numbers.
 
Two consecutive prime numbers after 41 are 43 and 47.
 
Answer: 47 Choice (2)
 
 
Example-5
36 : 45 = 57 : ___.
  1. 64
  2. 62
  3. 71
  4. 65
  5. 69
Solution
36 : 45 = 57 : ____
Description: 34543.png   Description: 34543.png
+9
(3 + 6) (SOD of 36)
  + (5 + 7 ) = + 12

Answer: 57 + (5 + 7) = 69 Choice (5)
 
 
Example-6
28 : 44 = 35 : ___.
  1. 53
  2. 50
  3. 54
  4. 48
  5. 44
Solution
28 : 44 = 35 : ____
Description: 34543.png   Description: 34543.png
+16
(2 × 8)
(Product of digits of 28)
  +15
(3 × 5)
(Product of digits of 35)

Answer: 35 + 15 = 50 Choice (2)
 
 
Example-7
29 : 62 = 218 : ___.
  1. 241
  2. 341
  3. 345
  4. 249
  5. 351
Solution
29 : 62 = 218 : ____
     
33+2   43–2   63+2   73–2

Answer: 73 – 2 = 341 Choice (2)
 
 
Example-8
2 : 9 = 64 : ___.
  1. 125
  2. 257
  3. 4225
  4. 625
  5. 216
Solution
2 : 9 = 64 : ____
     
21   32   43   54

Answer: 54 = 625 Choice (4)
 
 
Example-9
18 : 48 = 180 : ___.
  1. 294
  2. 230
  3. 392
  4. 292
  5. 394
Solution
18 : 48 = 180 : ____
     
33–32   43–42   63–62   73–72

Answer: 73 – 72 = 294 Choice (1)
 




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