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MCQOPTIONS
This section includes 497 Mcqs, each offering curated multiple-choice questions to sharpen your Grade9 knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
An identity that enables us to enlarge the number system to contain solution of every algebraic equation of the form x² = −a is known as |
| A. | logarithm |
| B. | iota |
| C. | radical |
| D. | anti-logarithm |
| Answer» C. radical | |
| 452. |
For all a, b, c ∈ R, a (b + c) = ab + ac is said to be |
| A. | left multiplicative law |
| B. | right multiplicative law |
| C. | left distributive law |
| D. | right distributive law |
| Answer» D. right distributive law | |
| 453. |
The decimal fraction in which some digits are repeated again and again in same order in its decimal part is called |
| A. | quadratic fraction |
| B. | terminating decimal fraction |
| C. | non-terminating decimal fraction |
| D. | linear fraction |
| Answer» D. linear fraction | |
| 454. |
Every real number is |
| A. | a positive integer |
| B. | a rational number |
| C. | a complex number |
| D. | a negative number |
| Answer» D. a negative number | |
| 455. |
If two opposite sides of a quadrilateral are congruent and parallel, it is a |
| A. | triangle |
| B. | hexagon |
| C. | rectangle |
| D. | parallelogram |
| Answer» E. | |
| 456. |
Midpoint of the points (2, −2) and (−2, 2) should be |
| A. | (2, −2) |
| B. | (−2, −2) |
| C. | (0, 0) |
| D. | (1, 1) |
| Answer» D. (1, 1) | |
| 457. |
A triangle that has 2 equal sides and 2 equal angles is known as |
| A. | isosceles triangle |
| B. | equilateral triangle |
| C. | scalene triangle |
| D. | right angle |
| Answer» B. equilateral triangle | |
| 458. |
The study of geometrical shapes in a simple plane is called |
| A. | coordinate geometry |
| B. | biometry |
| C. | plane geometry |
| D. | trigonometry |
| Answer» D. trigonometry | |
| 459. |
A triangle that has 3 equal sides and 3 equal angles is known as |
| A. | scalene triangle |
| B. | isosceles triangle |
| C. | right angle triangle |
| D. | equilateral triangle |
| Answer» E. | |
| 460. |
In a + (-a) = 0 = (-a) + a, ‘-a’ is called |
| A. | additive identity |
| B. | additive inverse |
| C. | associative property |
| D. | commutative property |
| Answer» C. associative property | |
| 461. |
A−1 and 1 ⁄ a are called |
| A. | additive identity |
| B. | multiplicative identity |
| C. | additive inverse |
| D. | multiplicative inverse |
| Answer» E. | |
| 462. |
Under property of equality of real numbers, a = b then ac = bc and ∀ a, b, c ∈ R is called |
| A. | transitive property |
| B. | multiplicative property |
| C. | symmetric property |
| D. | additive property |
| Answer» C. symmetric property | |
| 463. |
The number in the form z = a + bι where a, b ∈ R and i = √−1 is called a |
| A. | rational number |
| B. | complex number |
| C. | integer |
| D. | prime number |
| Answer» C. integer | |
| 464. |
The real numbers are represented geometrically on |
| A. | frequency distribution |
| B. | pi chart |
| C. | number line |
| D. | column graph |
| Answer» D. column graph | |
| 465. |
If r = 10, an = 100, a = 1 then ‘n’ should be equal to |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| Answer» E. | |
| 466. |
The arithmetic mean between √5 and 3√5 is |
| A. | 2√5 |
| B. | 4√5 |
| C. | √5 |
| D. | 5 |
| Answer» B. 4√5 | |
| 467. |
If a = 4, an = 110, d = 2, then the value of n should be |
| A. | 51 |
| B. | 52 |
| C. | 53 |
| D. | 54 |
| Answer» E. | |
| 468. |
Three arithmetic means between 11 and 19 are |
| A. | 12, 14, 15 |
| B. | 13, 15, 17 |
| C. | 13, 14, 15 |
| D. | 14, 15, 17 |
| Answer» C. 13, 14, 15 | |
| 469. |
Geometric mean is calculated by |
| A. | ± √ab |
| B. | ± ab |
| C. | (a + b)² |
| D. | a - b ⁄ 2 |
| Answer» B. ± ab | |
| 470. |
If A, B and C matrices are of same order and (a + b) + C = A + (b + c), this law is known as |
| A. | Cramer's law |
| B. | distributive law |
| C. | commutative law |
| D. | associative law |
| Answer» E. | |
| 471. |
Horizontally arranged elements in a matrix is called |
| A. | columns |
| B. | rows |
| C. | determinants |
| D. | transpose |
| Answer» C. determinants | |
| 472. |
The idea of matrices was introduced by Arthur Caylet in |
| A. | 18th century |
| B. | 19th century |
| C. | 20th century |
| D. | 21st century |
| Answer» C. 20th century | |
| 473. |
A matrix obtained by changing the rows into columns or vice versa is called |
| A. | additive inverse of A |
| B. | transpose of A |
| C. | determinant of A |
| D. | order of A |
| Answer» C. determinant of A | |
| 474. |
In real numbers, the additive identity is |
| A. | 1 |
| B. | 3 |
| C. | 0 |
| D. | −1 |
| Answer» D. −1 | |
| 475. |
The part of the plane enclosed by the triangle is called |
| A. | area of triangle |
| B. | volume of triangle |
| C. | interior of triangle |
| D. | exterior of triangle |
| Answer» D. exterior of triangle | |
| 476. |
If 1 side of a parallelogram is taken as its base, the perpendicular distance between that side and the side parallel to it is known as |
| A. | width |
| B. | altitude or height |
| C. | angle |
| D. | volume |
| Answer» C. angle | |
| 477. |
To draw a ray to divide the given angle into 2 equal parts is known as |
| A. | congruent |
| B. | trisection |
| C. | bisection |
| D. | segment |
| Answer» D. segment | |
| 478. |
A rectangular region can be divider in to 2 or more |
| A. | squares |
| B. | triangular regions |
| C. | rectangular regions |
| D. | quadrilaterals |
| Answer» C. rectangular regions | |
| 479. |
The right bisectors of the sides of a triangle are |
| A. | collinear |
| B. | concurrent |
| C. | reflective |
| D. | isosceles |
| Answer» C. reflective | |
| 480. |
√−1, √−5 are said to be |
| A. | pure imaginary numbers |
| B. | non-imaginary numbers |
| C. | recurring decimal numbers |
| D. | finite numbers |
| Answer» B. non-imaginary numbers | |
| 481. |
Set of integers is denoted by |
| A. | N |
| B. | W |
| C. | A |
| D. | Z |
| Answer» E. | |
| 482. |
As per properties of real numbers with respect to addition, a + b ∈ R and ∀ a, b ∈ R is |
| A. | associative property |
| B. | commutative property |
| C. | closure property |
| D. | additive inverse |
| Answer» D. additive inverse | |
| 483. |
The set of whole numbers is denoted by |
| A. | O |
| B. | N |
| C. | W |
| D. | P |
| Answer» D. P | |
| 484. |
In z = a + bι, if i is replaced by −ι, then another complex number obtained is said to b |
| A. | additive inverse of z |
| B. | prime factor of z |
| C. | Complex conjugate of z |
| D. | multiplicative inverse of z |
| Answer» D. multiplicative inverse of z | |
| 485. |
A binomial surd can be also obtained by adding a monomial surd and a |
| A. | zero |
| B. | conjugate surd |
| C. | rational number |
| D. | irrational number |
| Answer» D. irrational number | |
| 486. |
If p(x)≠0 and q(x)≠0 then the multiplicative inverse of p(x) ⁄ q(x) is |
| A. | p(x) - q(x) |
| B. | p(x) + q(x) |
| C. | q(x) ⁄ p(x) |
| D. | − p(x) ⁄ q(x) |
| Answer» D. − p(x) ⁄ q(x) | |
| 487. |
When operations of addition and subtraction are applied to algebraic terms, we get |
| A. | polynomial |
| B. | algebraic expression |
| C. | logarithm |
| D. | none of above |
| Answer» C. logarithm | |
| 488. |
The conjugate surd of x + √y is defined as |
| A. | −x - √ y |
| B. | x - √ y |
| C. | −x + √ y |
| D. | x + y |
| Answer» C. −x + √ y | |
| 489. |
1 ⁄ x-y − 1 ⁄ x + y is equal to |
| A. | 2x ⁄ x² - y² |
| B. | 2y ⁄ x² - y² |
| C. | −2x ⁄ x² - y² |
| D. | −2y ⁄ x² - y² |
| Answer» C. −2x ⁄ x² - y² | |
| 490. |
The geometric mean of 2, 4 and 8 is |
| A. | 3 |
| B. | 5 |
| C. | 2 |
| D. | 4 |
| Answer» E. | |
| 491. |
The harmonic mean of 3, 4 and 8 is |
| A. | 3.43 |
| B. | 3 |
| C. | 4 |
| D. | 8 |
| Answer» B. 3 | |
| 492. |
The positive square root of the mean of the squared deviations of the values from their mean is known as |
| A. | standard deviation |
| B. | median |
| C. | variance |
| D. | harmonic mean |
| Answer» B. median | |
| 493. |
The monthly income of 5 persons are 3000, 5000, 4000, 2000 and 6000. Their arithmetic mean should be |
| A. | 4000 |
| B. | 6000 |
| C. | 5000 |
| D. | 3500 |
| Answer» B. 6000 | |
| 494. |
3rd quartile is also known as |
| A. | lower quartile |
| B. | upper quartile |
| C. | median |
| D. | geometric mean |
| Answer» C. median | |
| 495. |
(3x + 4y)(9x² −12xy + 16y²) is equal to |
| A. | 27x³ + 64y³ |
| B. | 27x³ - 64y³ |
| C. | 64x³ + 27y³ |
| D. | 64x³ - 27y³ |
| Answer» B. 27x³ - 64y³ | |
| 496. |
If a specific number x = a is substituted for the variable x in a polynomial, so that the value is zero, then x = a is said to be |
| A. | zero of the polynomial |
| B. | zero coefficient |
| C. | conjugate surd |
| D. | rational number |
| Answer» B. zero coefficient | |
| 497. |
The factors of x4 - 16 are |
| A. | (x-2)(x + 2)(x² + 4) |
| B. | (x + 2)(x² + 4) |
| C. | (x-2)(x² + 4) |
| D. | (x-4)(x + 4)(x² + 4) |
| Answer» B. (x + 2)(x² + 4) | |