76 . (-1)2 - (-1)3 = ?
  • A. -2
  • B. -1
  • D. 2
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77 . ( 1000 ) 7 ÷ ( 10 ) 18 = ?
  • A. 10
  • B. 100
  • C. 10000
  • D. 1000
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78 . (0.04)^-1.5 = ?
  • A. 25
  • B. 250
  • C. 125
  • D. 625
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79 . (0.75×4.4×2.4)÷0.6=?
  • A. 4.752
  • B. 12
  • C. 15.84
  • D. 13.2
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80 . (1/10) 18 - (1/10)20=?
  • A. 99/1020
  • B. 99/10
  • C. 0.9
  • D. 10
  • E. None of them
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81 . (1000)7+1018=?
  • A. 10
  • B. 100
  • C. 10000
  • D. 1000
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82 . (1000)^7/10^18 = ?
  • A. 10
  • B. 100
  • C. 1000
  • D. 10000
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83 . (2x + 4 - 4.2x + 1)/(2x + 2 + 2)
  • A. 16
  • B. 4
  • C. 2
  • D. 8
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84 . (3x-1) not = 2x is true for all values of x EXCEPT
  • A. X not = 1
  • B. x =-1
  • C. x =1
  • D. none of these
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85 . (4x - 1)/(2x - 1)
  • A. 2x + 1
  • B. 2x + 1
  • C. 2x
  • D. 2
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86 . (87*87+61*61-2*87*61) = ?
  • A. 676
  • B. 196
  • C. 496
  • D. 298
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87 . (x × x2 × x3 × x4 × x5) ÷ x8 = ?
  • A. x6
  • B. x7
  • C. x3
  • D. x9
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88 . (xl - m)l + m × (xm - n)m + n × (xn - l)n + l
  • B. 1
  • C. 4
  • D. 2
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89 . (√3.√5)4 =?
  • A. 15
  • B. 225
  • C. 60
  • D. 30
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90 . (a+b)(a2−ab+b2) =?
  • A. a 3 − b 3
  • B. a 3 + b 3
  • C. a 6 − b 6
  • D. a 6 + b 6
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