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21. Find the value of :
(1.7)3 − (0.7)3 − 3 × 0.7 × 1.7 / (3.6)2 + (0.6)2 − 2 × 3.6 × 0.6
  A.  
1 / 32
  B.  
1 / 22
  C.  
1 / 42
  D.  
2 / 32
     
   
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22. Simlify the following:
885 × 885 × 885 + 115 × 115 × 115 / 885 × 885 + 115 × 115 − 885 × 115
  A.  1300
  B.  1000
  C.  1050
  D.  2000
     
   
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23. Simplify:
(0.623)3 + (0.377)3 / (0.623)2 − (0.623 × 0.377) + (0.377)2
  A.  2
  B.  3
  C.  1
  D.  4
     
   
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24.
0.5 × 0.5 × 0.5 + 0.6 × 0.6 × 0.6 / 0.5 × 0.5 − 0.3 + 0.6 × 0.6
  A.  2.1
  B.  1.8
  C.  1.1
  D.  3.1
     
   
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25. Find the value of :
5.7 × 5.7 × 5.7 + 2.3 × 2.3 × 2.3 / 5.7 × 5.7 + 2.3 × 2.3 − 5.7 × 0.23
= ?
  A.  8
  B.  9
  C.  5
  D.  2
     
   
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26. Simplify:
(0.87)3 + (0.13)3 / (0.87)2 + (0.13)2 − (0.87)(0.13)
  A.  2
  B.  5
  C.  3
  D.  1
     
   
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27. Simplify:
(
1.04 × 1.04 + 1.04 × 0.04 + 0.04 × 0.04 / 1.04 × 1.04 × 1.04 − 0.04 × 0.04 × 0.04
)
  A.  1
  B.  7
  C.  4
  D.  3
     
   
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28. Simplify:
0.86 × 0.86 × 0.86 − 0.14 × 0.14 × 0.14 / 0.86 × 0.86 + 0.86 × 0.14 + 0.14 × 0.14
  A.  0.72
  B.  0.50
  C.  0.85
  D.  0.42
     
   
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29. Find the value of :
(
1 / 216
)
−
2 / 3
÷
(
1 / 27
)
−
4 / 3
  A.  
5 / 9
  B.  
4 / 9
  C.  
4 / 7
  D.  
1 / 8
     
   
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30. Find the value of:
8
5 / 3
÷ (125)−
2 / 3
  A.  700
  B.  900
  C.  810
  D.  800
     
   
View Answer

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