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Inserting the Missing Character

11.
 
  • A. 535
  • B. 577
  • C. 755
  • D. 775
Ans: B.
Sol.
In the first column, 3 × 100 + 5 × 9 = 345.
In the second column, 4 × 100 + 6 × 10 = 460.
In the third column, missing number = 5 × 100 + 7 × 11 = 577.
 
12.
 
  • A. 22
  • B. 33
  • C. 66
  • D. 77
Ans: A.
Sol.
In the first row, ( 42 - 38 ) × 11 = 44.
In the second row, ( 28 - 23 ) × 11 = 55.
In the third row, missing number = ( 39 - 37 ) × 11 = 2 × 11 = 22.
 
13.
 
  • A. 18
  • B. 23
  • C. 24
  • D. 27
Ans: D.
Sol.
The number in the second column is three times the difference between the numbers in the third and first columns.
So, missing number = 3 x ( 16 -7) = 3 × 9 = 27.
 
14.
 
  • A. 9
  • B. 13
  • C. 15
  • D. 16
Ans: D.
Sol.
In the first column, 17 - 11 = 25 - 19 = 6.
In the second column, 12 - 6 = 34 - 28 = 6.
Let the missing number in the third column be x.
Then, x - 8 = 19 - 11 = 8 or x = 16.
 
 
15.
 
  • A. 12
  • B. 16
  • C. 22
  • D. 26
Ans: A.
Sol.
In the first column, 2 × 1 + 1 = 3.
In the second column, 14 × 7 + 7 = 105.
Let the missing number in the third column be x.
Then, x × 9 + 9 = 117 = 9x = 108 or x = 12.