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81. Find the value of x in the equation
√(
1 +
25 / 144
)
= 1 +
x / 12
  A.  1
  B.  5
  C.  3
  D.  4
     
   
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82. The highest score in an innings was
2 / 9
of the total score and the next highest was
2 / 9
of the remainder. These scores differed by 8 runs. What was the total score in the innings?
  A.  134
  B.  162
  C.  150
  D.  174
     
   
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83. Simplify
(
1 / 64
)
0 +
(
64
)
−
1 / 2
+
(
−32
)
4 / 5
  A.  15
1 / 8
  B.  17
2 / 9
  C.  17
1 / 8
  D.  19
3 / 7
     
   
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84. If √(2n) = 64, then find the value of n
  A.  16
  B.  14
  C.  12
  D.  10
     
   
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85. If a2 + b2 = 45 and ab = 18, find the value of
1 / a
+
1 / b
.
  A.  
1 / 2
  B.  
1 / 3
  C.  
2 / 3
  D.  
3 / 2
     
   
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86. If
a2 + b2 / c2 + d2
=
ab / cd
, then find the value of
a + b / a − b
in the terms of c and d only.
  A.  
(c + d)2 / (c − d)2
  B.  
d + c / d − c
  C.  
c − d / c + d
  D.  
c + d / c − d
     
   
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87. Simplify
a1/2 + a −1/2 / 1 − a
+
1 − a−1/2 / 1 + √a
  A.  
2 / 1 − a
  B.  
2 / a − 1
  C.  
4 / 1 − a
  D.  
3 / a − 1
     
   
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88. Solve 5 √x + 12√x = 13√x
  A.  4
  B.  3
  C.  1
  D.  2
     
   
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89.
2592 / √?
= 324
  A.  27
  B.  64
  C.  36
  D.  49
     
   
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90. If
√(
1 +
25 / 144
)
= 1 +
x / 12
then x = ?
  A.  5
  B.  2
  C.  8
  D.  1
     
   
View Answer

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