Q1:

Clocks

Medium

The numbers 1,2,...,91, 2,..., 9 are arranged in a 3×33 \times 3 square grid in such a way that each number occurs once and the entries along each column, each row, and each of the two diagonals add up to the same value.

If the top left and the top right entries of the grid are 66 and 22, respectively, then the bottom middle entry is

3
Correct Answer
Explanation for CAT QA question 1

Q2:

Time, Speed & Distance

Medium

In a 10 km10 \mathrm{~km} race. A, B, and C , each running at uniform speed, get the gold, silver, and bronze medals, respectively. If A beats B by 1 km1 \mathrm{~km} and B beats C by 1 km1 \mathrm{~km}, then by how many metres does A beat C?

1900
Correct Answer
Explanation for CAT QA question 2

Q3:

Mixture & Alligation

Medium

Bottle 11 contains a mixture of milk and water in 7:27: 2 ratio and Bottle 22 contains a mixture of milk and water in 9:49: 4 ratio. In what ratio of volumes should the liquids in Bottle 11 and Bottle 22 be combined to obtain a mixture of milk and water in 3:13: 1 ratio?

Answer options
Option 2
Correct Answer
Explanation for CAT QA question 3

Q4:

Time, Speed & Distance

Medium

Arun drove from home to his hostel at 6060 miles per hour. While returning home he drove half way along the same route at a speed of 2525 miles per hour and then took a bypass road which increased his driving distance by 55 miles, but allowed him to drive at 5050 miles per hour along this bypass road. If his return journey took 3030 minutes more than his onward journey, then the total distance traveled by him is

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 4

Q5:

Percentages

Easy

Out of the shirts produced in a factory, 15%15 \% are defective, while 20%20 \% of the rest are sold in the domestic market. If the remaining 88408840 shirts are left for export, then the number of shirts produced in the factory is

Answer options
Option 2
Correct Answer
Explanation for CAT QA question 5

Q6:

Mean, Median & Mode

Medium

The average height of 22 toddlers increases by 2 inches when two of them leave this group. If the average height of these two toddlers is one-third the average height of the original 22, then the average height, in inches, of the remaining 20 toddlers is

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 6

Q7:

Profit & Loss

Easy

The manufacturer of a table sells it to a wholesale dealer at a profit of 10%10 \%. The wholesale dealer sells the table to a retailer at a profit of 30%30\%. Finally, the retailer sells it to a customer at a profit of 50%50\%. If the customer pays Rs 42904290 for the table, then its manufacturing cost (in Rs) is

Answer options
Option 2
Correct Answer
Explanation for CAT QA question 7

Q8:

Time & Work

Easy

A tank has an inlet pipe and an outlet pipe. If the outlet pipe is closed then the inlet pipe fills the empty tank in 88 hours. If the outlet pipe is open then the inlet pipe fills the empty tank in 1010 hours. If only the outlet pipe is open then in how many hours the full tank becomes half-full?

Answer options
Option 1
Correct Answer
Explanation for CAT QA question 8

Q9:

Profit & Loss

Easy

Mayank buys some candies for Rs 1515 a dozen and an equal number of different candies for Rs 1212 a dozen. He sells all for Rs 16.5016.50 a dozen and makes a profit of Rs 150150. How many dozens of candies did he buy altogether?

Answer options
Option 1
Correct Answer
Explanation for CAT QA question 9

Q10:

Percentages

Medium

In a village, the production of food grains increased by 40%40 \% and the per capita production of food grains increased by 27%27\% during a certain period. The percentage by which the population of the village increased during the same period is nearest to

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 10

Q11:

Ratio, Proportion & Variation

Medium

If a,b,ca, b, c are three positive integers such that a and b are in the ratio 3:43 : 4 while bb and cc are in the ratio 2:12:1, then which one of the following is a possible value of (a+b+c)(a + b + c)?

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 11

Q12:

Time, Speed & Distance

Medium

A motorbike leaves point AA at 11 pm and moves towards point BB at a uniform speed. A car leaves point BB at 22 pm and moves towards point AA at a uniform speed which is double that of the motorbike. They meet at 3:403:40 pm at a point which is 168 km168 \mathrm{~km} away from AA . What is the distance, in km, between AA and BB ?

Answer options
Option 2
Correct Answer
Explanation for CAT QA question 12

Q13:

Time & Work

Easy

Amal can complete a job in 1010 days and Bimal can complete it in 88 days. Amal, Bimal and Kamal together complete the job in 44 days and are paid a total amount of Rs 10001000 as remuneration. If this amount is shared by them in proportion to their work, then Kamal's share, in rupees, is

Answer options
Option 1
Correct Answer
Explanation for CAT QA question 13

Q14:

Mixture & Alligation

Medium

Consider three mixtures - the first having water and liquid A in the ratio 1:21: 2, the second having water and liquid B in the ratio 1:31: 3, and the third having water and liquid CC in the ratio 1:41: 4. These three mixtures of A,B,A, B, and CC, respectively, are further mixed in the proportion 4:3:24:3:2. Then the resulting mixture has

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 14

Q15:

Polygons

Easy

Let ABCDEFABCDEF be a regular hexagon with each side of length 11 cm. The area (in sq cm) of a square with ACAC as one side is

Answer options
Option 2
Correct Answer
Explanation for CAT QA question 15

Q16:

Solids

Medium

The base of a vertical pillar with uniform cross section is a trapezium whose parallel sides are of lengths 1010 cm and 2020 cm while the other two sides are of equal length. The perpendicular distance between the parallel sides of the trapezium is 1212 cm. If the height of the pillar is 2020 cm, then the total area, in sq cm, of all six surfaces of the pillar is

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 16

Q17:

Quadrilaterals

Easy

The points (2,5)(2, 5) and (6,3)(6, 3) are two end points of a diagonal of a rectangle. If the other diagonal has the equation y=3x+cy = 3x + c, then cc is

Answer options
Option 4
Correct Answer
Explanation for CAT QA question 17

Q18:

Circles

Medium

ABCDABCD is a quadrilateral inscribed in a circle with centre O. If ∠COD=120\angle COD = 120 degrees and ∠BAC=30\angle BAC = 30 degrees, then the value of ∠BCD\angle BCD (in degrees) is

90
Correct Answer
Explanation for CAT QA question 18

Q19:

Quadrilaterals

Medium

If three sides of a rectangular park have a total length 400ft400 \mathrm{ft}, then the area of the park is maximum when the length (in ft ) of its longer side is

200
Correct Answer
Explanation for CAT QA question 19

Q20:

Triangles

Medium

Let PP be an interior point of a right-angled isosceles triangle ABCABC with hypotenuse ABAB . If the perpendicular distance of P from each of AB,BCA B, B C, and CAC A is 4(2−1)cm4(\sqrt{2}-1) \mathrm{cm}, then the area, in sq cm, of the triangle ABCA B C is

16
Correct Answer
Explanation for CAT QA question 20

Q21:

Factorisation

Easy

If the product of three consecutive positive integers is 1560015600 then the sum of the squares of these integers is

Answer options
Option 4
Correct Answer
Explanation for CAT QA question 21

Q22:

Logarithms

Medium

If xx is a real number such that log⁡35=log⁡5(2+x)\log_3 5 = \log_5 (2 + x), then which of the following is true?

Answer options
Option 4
Correct Answer
Explanation for CAT QA question 22

Q23:

Functions

Easy

Let f(x)=x2f(x) = x^2 and g(x)=2xg(x) = 2^x, for all real xx. Then the value of f(f(g(x))+g(f(x)))f(f(g(x)) + g(f(x))) at x=1x = 1 is

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 23

Q24:

Minima & Maxima

Medium

The minimum possible value of the sum of the squares of the roots of the equation x2+(a+3)x−(a+5)=0x^{2}+(a+3) x-(a+5)=0 is

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 24

Q25:

Indices

Medium

If 9x−12−22x−2=4x−32x−39^{x-\frac{1}{2}} - 2^{2x-2} = 4^x - 3^{2x-3}, then x is

Answer options
Option 1
Correct Answer
Explanation for CAT QA question 25

Q26:

Logarithms

Easy

If log⁡(2a×3b×5c)\log (2^a \times 3^b \times 5^c) is the arithmetic mean of log⁡(22×33×5)\log (2^2 \times 3^3 \times 5), log⁡(26×3×57)\log (2^6 \times 3 \times 5^7), and log⁡(2×32×54)\log (2 \times 3^2 \times 5^4), then a equals

3
Correct Answer
Explanation for CAT QA question 26

Q27:

Progression & Series

Medium

Let a1,a2,a3,a4,a5a_1, a_2, a_3, a_4, a_5 be a sequence of five consecutive odd numbers. Consider a new sequence of five consecutive even numbers ending with 2a32a_3.

If the sum of the numbers in the new sequence is 450450, then a5a_5 is

51
Correct Answer
Explanation for CAT QA question 27

Q28:

Integral Solutions

Medium

How many different pairs (a,b)(a, b) of positive integers are there such that a≤ba ≤ b and 1a+1b=19\frac{1}{a} + \frac{1}{b} = \frac{1}{9}

3
Correct Answer
Explanation for CAT QA question 28

Q29:

Permutation & Combination

Easy

In how many ways can 88 identical pens be distributed among Amal, Bimal, and Kamal so that Amal gets at least 11 pen, Bimal gets at least 22 pens, and Kamal gets at least 33 pens?

6
Correct Answer
Explanation for CAT QA question 29

Q30:

Permutation & Combination

Hard

How many four digit numbers, which are divisible by 66, can be formed using the digits 0,2,3,4,60, 2, 3, 4, 6, such that no digit is used more than once and 00 does not occur in the left-most position?

50
Correct Answer
Explanation for CAT QA question 30

Q31:

Functions

Easy

If f(ab)=f(a)f(b)f(ab) = f(a)f(b) for all positive integers aa and bb, then the largest possible value of f(1)f(1) is

1
Correct Answer
Explanation for CAT QA question 31

Q32:

Modulus

Medium

Let f(x)=2x–5f(x) = 2x – 5 and g(x)=7–2xg(x) = 7 – 2x. Then ∣f(x)+g(x)∣=∣f(x)∣+∣g(x)∣|f(x) + g(x)| = |f(x)| + |g(x)| if and only if

Answer options
Option 4
Correct Answer
Explanation for CAT QA question 32

Q33:

Progression & Series

Medium

An infinite geometric progression a1,a2,a3,...a_1, a_2, a_3,... has the property that an=3(an+1+an+2+....)a_n = 3(a_{n+1} + a_{n+2} +....) for every n≥1n \ge 1. If the sum a1+a2+a3+.....=32a_1 + a_2 + a_3 +..... = 32, then a5a_5 is

Answer options
Option 3
Correct Answer
Explanation for CAT QA question 33

Q34:

Progression & Series

Medium

If a1=12×5,a2=15×8,a3=18×11\mathrm{a}_{1}=\frac{1}{2 \times 5}, \mathrm{a}_{2}=\frac{1}{5 \times 8}, \mathrm{a}_{3}=\frac{1}{8 \times 11}, then a1,+a2,+a3,+…..a100\mathrm{a}_{1,}+\mathrm{a}_{2,}+\mathrm{a}_{3,}+\ldots . . \mathrm{a}_{100} is

Answer options
Option 1
Correct Answer
Explanation for CAT QA question 34

CAT 2017 Quantitative Ability Past Year Question Paper

Every question from the CAT 2017 Quantitative Ability paper is here in full, with the correct answer and a step by step solution for each one. It is completely free, there is no login and no paywall, and you can read the whole paper online or download it to revise offline.

You can also attempt it instead of only reading it. Take the paper as a full length mock under exam conditions, or filter it by topic and attempt just that topic as a topic test. Both are free, and you get a breakdown of your accuracy, your timing and your weak areas once you submit.

CAT past year questions (PYQs) are the closest thing to the real exam, so working through them is the quickest way to learn the paper pattern, the marking scheme and the level of difficulty to expect on the day.