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CAT 2023 Slot 1 – All Quantitative Aptitude Questions with Video Solutions & 1-Minute Shorts

CAT 2023 Slot 1
CAT 2023 Slot 1 Quantitative Aptitude

Preparing for CAT 2025 or CAT 2026?

This blog gives you all actual Quantitative Aptitude questions from CAT 2023 Slot 1 — with each question followed by a 1-minute YouTube Short (if it can be solved quickly) and a full-length video explanation. This is the most efficient way to practice real CAT-level problems and improve your speed, accuracy, and concepts.


The videos are taught by Anshu Agarwal Sir, a CAT QA 99.97 percentiler and XAT QA Topper, who has helped thousands of students get into IIMs through smart solving techniques and conceptual clarity.


Scroll below to start solving and mastering QA like a topper.


📘 CAT 2023 Slot 1 – QA Questions with 1-Minute Shorts + Full Video Solutions


1. If x and y are positive real numbers such that

logₓ(x² + 12) = 4 and 3·logᵧ(x) = 1, then x + y equals :

(a) 20

(b) 11

(c) 10

(d) 68


2. If √(5x + 9) + √(5x − 9) = 3(2 + √2), then √(10x + 9) is equal to:

(a) 3√31

(b) 2√7

(c) 4√5

(d) 3√7


3. If x and y are real numbers such that

x² + (x − 2y − 1)² = −4y(x + y),

then the value of x − 2y is:

(a) −1

(b) 0

(c) 2

(d) 1


4. Let n be the least positive integer such that 168 is a factor of 1134ⁿ.

If m is the least positive integer such that 1134ⁿ is a factor of 168ᵐ, then m + n equals:

(a) 24

(b) 9

(c) 15

(d) 12

Short Explanation:


5. The equation

x³ + (2r + 1)x² + (4r − 1)x + 2 = 0 has −2 as one of the roots. If the other two roots are real,

then the minimum possible non–negative integer value of ‘r’ is:

Short Explanation:


🔥 Want to Prepare Like a Topper?

These exact solving methods are taught in my full video courses – followed by students who made it to IIM Ahmedabad, Bangalore, Indore, and more.



✅ All videos by Anshu Agarwal Sir (CAT QA 99.97%ile, XAT Topper)

✅ Maths + DILR + Full Test Series + Printed Material

✅ Topic-wise clarity + smart tricks for speed & accuracy


6. The number of integer solutions of the equation

2|x|(x² + 1) = 5x² is:


7. Let α and β be two distinct roots of the equation

2x² − 6x + k = 0, such that (α + β) and αβ are the distinct roots of the equation

x² + px + p = 0. Then the value of 8(k − p) is:


8. Gita sells two objects A and B at the same price such that she makes a profit of 20% on object A and a loss of 10% on object B. If she increases the selling price such that objects A and B are still sold at an equal price and a profit of 10% is made on object B, then the profit made on object A will be nearest to:

(a) 47%

(b) 49%

(c) 45%

(d) 42%


9. The minor angle between the hour hand and minute hand of a clock was observed at 8:48 am. The minimum duration, in minutes, after 8:48 am when this angle increases by 50% is:

(a) 4

(b) 24/11

(c) 2

(d) 36/11

Short Explanation:


10. The salaries of three friends Sita, Gita and Mita are initially in the ratio 5 : 6 : 7, respectively. In the first year, they get salary hikes of 20%, 25% and 20%, respectively. In the second year, Sita and Mita get salary hikes of 40% and 25%, respectively, and the salary of Gita becomes equal to the mean salary of the three friends. The salary hike of Gita in the second year is:

(a) 25%

(b) 28%

(c) 30%

(d) 26%

Short Explanation:


🔥 Want to Prepare Like a Topper?

These exact solving methods are taught in my full video courses – followed by students who made it to IIM Ahmedabad, Bangalore, Indore, and more.



✅ All videos by Anshu Agarwal Sir (CAT QA 99.97%ile, XAT Topper)

✅ Maths + DILR + Full Test Series + Printed Material

✅ Topic-wise clarity + smart tricks for speed & accuracy


11. Brishti went on an 8-hour trip in a car. Before the trip, the car had travelled a total of x kilometre till then, where x is a whole number and is palindromic, that is, x remains unchanged when its digits are reversed. At the end of the trip, the car had travelled a total 26862 kilometre till then, this number again being palindromic. If Brishti never drove at more than 100 kilometre per hour, then the greatest possible average speed at which she drove during the trip, in kilometre per hour was:

(a) 80

(b) 100

(c) 110

(d) 90


12. A mixture P is formed by removing a certain amount of coffee from a coffee jar and replacing the same amount with cocoa powder. The same amount is again removed from mixture P and replaced with same amount of cocoa powder to form a new mixture Q. If the ratio of coffee and cocoa in the mixture Q is 16 : 9, then the ratio of cocoa in mixture P to that in mixture Q is:

(a) 1 : 2

(b) 4 : 9

(c) 5 : 9

(d) 1 : 3

Short Explanation:


13. In an examination, the average marks of 4 girls and 6 boys is 24. Each of the girls has the same marks while each of the boys has the same marks. If the marks of any girl is at most double the marks of any boy, but not less than the marks of any boy, then the number of possible distinct integer values of the total marks of 2 girls and 6 boys is:

(a) 19

(b) 22

(c) 20

(d) 21

Short Explanation:


14. The amount of job that Amal, Sunil and Kamal can individually do in a day, are in harmonic progression. Kamal takes twice as much time as Amal to do the same amount of job. If Amal and Sunil work for 4 days and 9 days, respectively, Kamal needs to work for 16 days to finish the remaining job. Then the number of days Sunil will take to finish the job working alone, is:

Short Explanation:


15. Arvind travels from town A to town B, and Surbhi from town B to town A, both starting at the same time along the same route. After meeting each other, Arvind takes 6 hours to reach town B while Surbhi takes 24 hours to reach town A. If Arvind travelled at a speed of 54 km/h, then the distance, in km, between town A and town B is:


🔥 Want to Prepare Like a Topper?

These exact solving methods are taught in my full video courses – followed by students who made it to IIM Ahmedabad, Bangalore, Indore, and more.



✅ All videos by Anshu Agarwal Sir (CAT QA 99.97%ile, XAT Topper)

✅ Maths + DILR + Full Test Series + Printed Material

✅ Topic-wise clarity + smart tricks for speed & accuracy


16. Anil invests ₹22000 for 6 years in a certain scheme with 4% interest per annum, compounded half-yearly. Sunil invests in the same scheme for 5 years, and then reinvests the entire amount received at the end of 5 years for one year at 10% simple interest. If the amounts received by both at the end of 6 years are same, then the initial investment made by Sunil, in rupees, is:

Short Explanation:


17. A quadrilateral ABCD is inscribed in a circle such that AB : CD = 2 : 1 and BC : AD = 5 : 4. If AC and BD intersect at the point E, then AE : CE equals:

(a) 1 : 2

(b) 5 : 8

(c) 2 : 1

(d) 8 : 5


18. Let C be the circle x² + y² + 4x − 6y − 3 = 0 and L be the locus of the point of intersection of pair of tangents to Cwith the angle between the two tangents equal to 60°. Then, the point at which L touches the line x = 6 is:

(a) (6, 3)

(b) (6, 8)

(c) (6, 4)

(d) (6, 6)

Short Explanation:


19. In a right-angled triangle ∆ABC, the altitude AB is 5 cm, and the base BC is 12 cm. P and Q are two points on BC such that the areas of ∆ABP, ∆ABQ, and ∆ABC are in arithmetic progression. If the area of ∆ABC is 1.5 times the area of ∆ABP, the length of PQ, in cm, is:

Short Explanation:


20. For some positive and distinct real numbers x, y and z, if

1 / (√y + √z) is the arithmetic mean of 1 / (√x + √z) and 1 / (√x + √y),

then the relationship which will always hold true is:

(a) √x, √z and √y are in arithmetic progression

(b) y, x and z are in arithmetic progression

(c) x, y and z are in arithmetic progression

(d) √x, √y and √z are in arithmetic progression


🔥 Want to Prepare Like a Topper?

These exact solving methods are taught in my full video courses – followed by students who made it to IIM Ahmedabad, Bangalore, Indore, and more.



✅ All videos by Anshu Agarwal Sir (CAT QA 99.97%ile, XAT Topper)

✅ Maths + DILR + Full Test Series + Printed Material

✅ Topic-wise clarity + smart tricks for speed & accuracy


21. The number of all natural numbers up to 1000 with non-repeating digits is:

(a) 648

(b) 585

(c) 738

(d) 504


22. A lab experiment measures the number of organisms at 8 a.m. every day. Starting with 2 organisms on the first day, the number of organisms on any day is equal to 3 more than twice the number on the previous day. If the number of organisms on the n-th day exceeds 1 million, then the lowest possible value of n is:

Short Explanation:


🔥 Want to Prepare Like a Topper?

These exact solving methods are taught in my full video courses – followed by students who made it to IIM Ahmedabad, Bangalore, Indore, and more.



✅ All videos by Anshu Agarwal Sir (CAT QA 99.97%ile, XAT Topper)

✅ Maths + DILR + Full Test Series + Printed Material

✅ Topic-wise clarity + smart tricks for speed & accuracy

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