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11.
40.83 x 1.02 x 1.2 = ?
  • A.
    41.64660
  • C.
    49.97592
  • B.
    42.479532
  • D.
    58.7952
  • Answer & Explanation
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Answer : [C]
Explanation :
 
4083 x 102 x 12 = 4997592. Sum of decimal places = 5
 
      40.83 x 1.02 x 1.2 = 49.97592.    
 
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12.
(0.2 x 0.2 + 0.01) (0.1 x 0.1 + 0.02)-1 is equal to :
  • A.
    		 5  
    3  
  • C.
    		 41  
    4  
  • B.
    		 9    
    5  
  • D.
    		 41    
    12  
  • Answer & Explanation
  • Report
Answer : [A]
Explanation :
 
Given expression =
(0.2 x 0.2 + 0.01)
(0.1 x 0.1 + 0.02)
=
0.04 + 0.01
0.01 + 0.02
=
0.05
0.03
=
5
3
 
 
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13.
Find the value of the following expression upto four places of decimals
  1+
1
1 x 2
+
1
1 x 2 x 4
+
1
1 x 2 x 4 x 8
+
1
1 x 2 x 4 x 8 x 16
     
  • A.
    1.6414
  • C.
    1.6416
  • B.
    1.6415
  • D.
    1.6428
  • Answer & Explanation
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Answer : [C]
Explanation :
 
Given expression =
2 x 4 x 8 x 16 + 4 x 8 x 16 + 8 x 16 + 16 +1
2 x 4 x 8 x 16
       
 
Given expression =
1024 + 512 + 128 + 16 + 1
1024
=
1681
1024
 = 1.6416  
 
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14.

The arrange of rational numbers
-7
10
,
5
-8
,
2
3
  in ascending order is:    
  • A.
    		 2 , 5 , -7  
    -3 -8 10  
  • C.
    		 -7 , 5 , 2  
    10 -8 -3  
  • B.
    		 5 , -7 , 2  
    -8 10 -3  
  • D.
    		 -7 , 2 , 5  
    10 -3 -8  
  • Answer & Explanation
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Answer : [D]
Explanation :
 
-7
10
= -0.7,
5
-8
 = -
5
8
 = -0.625,
2
-3
 = -
2
3
 = -0.66      
 
Since -0.7 < -0.66 < -0.625, so
-7
10
<
2
-3
<
5
-8
   
 
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15.
4.036 divided by 0.04 gives:
  • A.
    1.009
  • C.
    100.9
  • B.
    10.09
  • D.
    None of these
  • Answer & Explanation
  • Report
Answer : [C]
Explanation :
 
4.036
0.04
=
403.6
4
 = 100.9  
 
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