ECAT Pre General Science MCQ Test With Answer for Mathematics Chapter 1

In set builder notation the set {0,1,2,........100} can be written as

• {x / xε B ∧ x ≤ 100} A
• {x / x ∈ W ∧ x < 101} B
• {x / x ∈ Z ∧ x < 101} C
• The set of first 100 whole numbers D

• Multiplication property A
• Additive property B
• Trichotomy property C
• Transitive property of inequality D

In (x + iy) x is the known as

• Imaginary part of complex number A
• Real part of complex number B
• Complex number C
• None of above D

The additive identity of real number is

• 1 A
• 2 B
• 1/2 C
• 0 D

• 
  A
• 
  B
• 
  C
• 
  D

i^-(4n+2) = -------------------------------

• 1 A
• i B
• -1 C
• -i D

Every recurring decimal represents

• A natural number A
• A rational number B
• An irrational number C
• A whole number D

• Rational A
• Irrational B
• Natural C
• Odd D

• z is purely imaginary A
• a is any complex number B
• z is real C
• None of these D

a >b, b >c ⇒a >c is a

• Multiplicative property A
• Additive property B
• Trichotomy property C
• Transitive property of inequality D

3/4 is ______

• An odd number A
• An even number B
• A natural number C
• A rational number D

• A prime number A
• An integer B
• A whole number C
• An irrational number D

The equation |x +4| = x has solution

• x = -2 A
• x = 2 B
• x = -4 C
• x = 4 D

• Associative law of multiplication A
• Commutative law of addition B
• Commutative law of multiplication C
• Associative law of addition D

In R, the multiplicative identity is

• 0 A
• 1 B
• -1 C
• None D

√x = ______ if is a prime number

• Rational no A
• Natural no B
• Irrational no C
• Complex no D

Every real number is

• A complex number A
• A rational number B
• A natural number C
• A prime number D

1/3 is a decimal

• Recurring A
• Terminating B
• Non-terminating C
• None of the above D

∀ a ε R ∃ o ε R such that a + v = 0 + a = a is property of

• Commutative law of addition A
• Associative law of addition B
• Additive identity C
• Additive inverse D

The property used in -3 <-2 ⇒0 <1

• Commutative property A
• Additive property of inequality B
• Additive inverse C
• Additive identity D

The square root of every incomplete square is an

• Rational numbers A
• Even numbers B
• odd numbers C
• Irrational numbers D

24 can be written as a product of

• Odd factors A
• Even factors B
• Whole factors C
• Prime factors D

Decimal part of irrational number is

• Terminating A
• Repeating only B
• Neither repeating nor terminating C
• Repeating and terminating D

The multiplicative inverse of 2/3 is

• 3/2 A
• -2/3 B
• -3/2 C
• 1 D

(a^-1)^-1=

• a^-1 A
• a B
• -a C
• None of above D

A non-terminating, non-recurring decimal represent

• A natural number A
• A rational number B
• An irrational number C
• A prime number D

Name the property used in 4 + 9 = 9 + 4

• Associative property of addition A
• Commutative property of addition B
• Distributive property C
• Additive identity D

• 
  A
• 
  B
• 
  C
• 
  D

The order axioms are satisfied by set of

• C A
• C and R B
• R C
• None of these D

1.4142135... is ______

• A natural number A
• A rational number B
• A prime number C
• An irrational number D