CAT 2020 Slot 1 QA questions, answer key and solutions

The Quantitative Ability (QA) section of CAT 2020 Slot 1: 26 questions in 40 minutes, 8 TITA and 18 MCQ. The answer key below is CAT's official one; 26 questions link to a step-by-step solution.

QQuestionTopicTypeAnswerSolution
Q1How many 3-digit numbers are there, for which the product of…Number SystemsTITA21Yes
Q2If f(5 + x) = f(5 - x) for every real x and f(x) = 0 has…Functions & GraphsMCQDYes
Q3Veeru invested Rs 10000 at 5% simple annual interest, and…InterestTITA12Yes
Q4A train travelled at one-thirds of its usual speed, and…Time, Speed & DistanceMCQBYes
Q5If log_4 5 = (log_4 y) (log_6 √5), then y equalsLogarithms & ExponentsTITA36Yes
Q6The number of real-valued solutions of the equation 2^x +…Logarithms & ExponentsMCQBYes
Q7A straight road connects points A and B. Car 1 travels from…Time, Speed & DistanceMCQAYes
Q8Let A, B and C be three positive integers such that the sum…EquationsMCQAYes
Q9If x = (4096)^7+4√3, then which of the following equals 64?Logarithms & ExponentsMCQCYes
Q10The mean of all 4 digit even natural numbers of the form…Ratio, Mixtures & AveragesMCQAYes
Q11The number of distinct real roots of the equation (x + 1/x…EquationsTITA1Yes
Q12A person spent Rs 50000 to purchase a desktop computer and a…Percentages & Profit-LossTITA20000Yes
Q13Among 100 students, x_1 have birthdays in January, x_2 have…Inequalities & ModulusMCQDYes
Q14Two persons are walking beside a railway track at respective…Time, Speed & DistanceMCQBYes
Q15How many distinct positive integer-valued solutions exist to…EquationsMCQAYes
Q16The area of the region satisfying the inequalities |x| - y ≤…Coordinate GeometryTITA3Yes
Q17A solid right circular cone of height 27 cm is cut into 2…MensurationMCQCYes
Q18A circle is inscribed in a rhombus with diagonals 12 cm and…GeometryMCQBYes
Q19Leaving home at the same time, Amal reaches office at 10:15…Time, Speed & DistanceMCQAYes
Q20If a, b and c are positive integers such that ab = 432, bc =…Number SystemsMCQCYes
Q21If y is a negative number such that 2 y^2log_35 = 5 log_23…Logarithms & ExponentsMCQAYes
Q22On a rectangular metal sheet of area 135 sq in, a circle is…MensurationMCQAYes
Q23In a group of people, 28% of the members are young while the…Percentages & Profit-LossMCQCYes
Q24An alloy is prepared by mixing metals A, B, C in the…Ratio, Mixtures & AveragesMCQAYes
Q25A gentleman decided to treat a few children in the following…EquationsTITA62Yes
Q26A solution, of volume 40 litres, has dye and water in the…Ratio, Mixtures & AveragesTITA8Yes

Topics in this section

TopicQuestions
Equations4
Logarithms & Exponents4
Time, Speed & Distance4
Ratio, Mixtures & Averages3
Mensuration2
Number Systems2
Percentages & Profit-Loss2
Coordinate Geometry1
Functions & Graphs1
Geometry1
Inequalities & Modulus1
Interest1

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