Practice Mathematics MCQ Questions 26–43 out of 43. Free quiz with answers and explanations for UPSC, SSC, Railway exam preparation. Build exceptional problem-solving speed and accuracy with our interactive Mathematics quantitative aptitude test. Solve top-tier objective questions covering percentage, profit and loss, time and work, speed-distance, algebra, geometry, and data interpretation metrics standard across all bank exams.
The mode is the number that repeats the most often in an array. [Memory Trick: 'Mo'-de occurs 'Mo'-st frequently!]
5! is 5 * 4 * 3 * 2 * 1 = 120. [Memory Trick: Factorials grow quickly; five fingers tick exact '120' beats!]
A trinomial consists of three algebraic terms (e.g., ax^2 + bx + c). [Memory Trick: A 'Tri'-cycle has 3 wheels, 'Tri'-nomial has 3 terms!]
The probability is (1/2) * (1/2) * (1/2) = 1/8. [Memory Trick: Double the denominator: 2, 4, 8 to hit three tails!]
Since constants do not change, their rate of change (derivative) is exactly zero. [Memory Trick: A static brick wall has 'Zero' rate of motion/running change!]
Boolean algebra operates on binary variables (True/False or 1/0) using standard logic operations, created by George Boole. [Memory Trick: 'Bool'ean variables can only be 'boldly' true or false!]
The Pythagorean Theorem states a^2 + b^2 = c^2 for any right-angled triangle. [Memory Trick: Python shapes triangles along 'Pythagor'-ean coordinates!]
British mathematician Sir Andrew Wiles published the formal proof of Fermat's Last Theorem using modern elliptic curves. [Memory Trick: He used his extreme 'Wiles' (clever strategy) to untie Fermat's knot!]
Since 3^2 + 4^2 = 9 + 16 = 25 = 5^2, it is a Pythagorean triplet, forming a right-angled triangle. [Memory Trick: Standard '3-4-5' layout is the builder's favorite to check 'Right' corners!]
Hexadecimal uses base-16, containing digits 0-9 and letters A-F to signify values up to 15. [Memory Trick: 'Hexa' (6) + 'Decimal' (10) = Sixteen '16' base!]
15 * 15 equals 225. [Memory Trick: 5-ending squares always have double fives, '15' meets 225!]
Parallel lines maintain an equidistant spacing and never meet. [Memory Trick: The three central 'l' letters in 'ParaLLeL' show parallel lines side-by-side!]
Variance measures how far a set of numbers are spread out from their average. It's the square of standard deviation. [Memory Trick: Square the deviation to watch the actual 'Variance' expand!]
25 divided by 7 is 3 with a remainder of 4 (7 * 3 = 21, 25 - 21 = 4). [Memory Trick: 25 has 4 units left over beyond the 21 boundary!]
By definition, x^0 = 1 for any non-zero real number. [Memory Trick: Flattening any power to zero leaves a baseline of exactly '1' solid unit!]
The Riemann Hypothesis proposes that all non-trivial zeros of the Riemann zeta function have a real part equal to 1/2. [Memory Trick: 'Riemann' map traces 'R'-ecurrent prime number paths!]
A circle describes a complete 360-degree rotation. [Memory Trick: Turning fully around lands you back at the '360' peak point!]
Since any even number larger than 2 is divisible by 2, all higher primes must be odd numbers. [Memory Trick: 2 is the ONLY even prime - the rest are odd outlaws!]
Tyagi