CAT 2023 Slot 2 – Quants Practice Questions
Q1. Let a,b,m and n be natural numbers such that a>1 and b>1. If (a)^m(b)^n=(144)^145, then the largest possible value of n−m is
Correct Answer: C. 579
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Q2. If x and y are real numbers such that x² + (x – 2y – 1)² = -4y(x + y), then the value of (x -2y) is:
Correct Answer: C. 1/2
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Q3. For any natural numbers m,n,k such that k divides both m+2n and 3m+4n, k must be a common divisor of:
Correct Answer: B. m and 2n
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Q4.
Correct Answer: C. if y < 0, then –x < y
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Q5.
Correct Answer: 7
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Q6. The number of positive integers less than 50, having exactly two distinct factors other than 1 and itself, is:
Correct Answer: 15
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Q7. Let k be the largest integer such that the equation (x – 1)2 + 2kx + 11 = 0 has no real roots If y is a positive real number, then the least possible value of k/4y + 9y is:
Correct Answer: 6
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Q8 – In a company, 20% of the employees work in the manufacturing department. If the total
salary obtained by all the manufacturing employees is one-sixth of the total salary obtained
by all the employees in the company, then the ratio of the average salary obtained by the
manufacturing employees to the average salary obtained by the non-manufacturing
employees is:
Correct Answer: A. 4 : 5
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Q9 – Minu purchases a pair of sunglasses at Rs. 1000 and sells to Kanu at 20% profit. Then
Kanu sells it back to Minu at 20% loss. Finally, Minu sells the same pair of sunglasses to
Tanu. If the total profit made by Minu from all her transactions is Rs. 500, then the
percentage of profit made by Minu when she sold the pair of sunglasses to Tanu is:
Correct Answer: B. 31.25%
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Q10 – Pipes A and C are fill pipes while Pipe B is a drain pipe of a tank. Pipe B empties the full
tank in one hour less than the time taken by Pipe A to fill the empty tank. When pipes A, B
and C are turned on together, the empty tank is filled in two hours. If pipes B and C are
turned on together when the tank is empty and Pipe B is turned off after one hour, then Pipe
C takes another one hour and 15 minutes to fill the remaining tank. If Pipe A can fill the
empty tank in less than five hours, then the time taken, in minutes, by Pipe C to fill the
empty tank is:
Correct Answer: A. 90
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Q11 – Ravi is driving at a speed of 40 km/h on a road. Vijay is 54 meters behind Ravi and
driving in the same direction as Ravi. Ashok is driving along the same road from the
opposite direction at a speed of 50 km/h and is 225 meters away from Ravi. The speed, in
km/h, at which Vijay should drive so that all the three cross each other at the same time, is:
Correct Answer: D. 61.6
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Q12 – Anil borrows Rs 2 lakhs at an interest rate of 8% per annum, compounded half-yearly.
He repays Rs 10,320 at the end of the first year and closes the loan by paying the
outstanding amount at the end of the third year. Then, the total interest, in rupees, paid over
the three years is nearest to:
Correct Answer: B. 51,311
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Q13 – The price of a precious stone is directly proportional to the square of its weight. Sita has
a precious stone weighing 18 units. If she breaks it into four pieces with each piece having
distinct integer weight, then the difference between the highest and lowest possible values
of the total price of the four pieces will be 288000. Then, the price of the original precious
stone is:
Correct Answer: A. 1,296,000
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Q14- A container has 40 liters of milk. Then, 4 liters are removed from the container and
replaced with 4 liters of water. This process of replacing 4 liters of the liquid in the
container with an equal volume of water is continued repeatedly. The smallest number of
times of doing this process, after which the volume of milk in the container becomes less
than that of water, is:
Correct Answer: 7
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Q15- Jayant bought a certain number of white shirts at the rate of Rs 1000 per piece and a
certain number of blue shirts at the rate of Rs 1125 per piece. For each shirt, he then set a
fixed market price which was 25% higher than the average cost of all the shirts. He sold all
the shirts at a discount of 10% and made a total profit of Rs 51,000. If he bought both colors
of shirts, then the maximum possible total number of shirts that he could have bought is:
Correct Answer: 407
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Q16- If a certain amount of money is divided equally among n persons, each one receives Rs
352. However, if two persons receive Rs 506 each and the remaining amount is divided
equally among the other persons, each of them receive less than or equal to Rs 330. Then,
the maximum possible value of n is:
Correct Answer: 16
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Q17- In a rectangle ABCD, AB = 9 cm and BC = 6 cm. P and Q are two points on BC such that
the areas of the figures ABP, APQ, and AQCD are in geometric progression. If the area of the
figure AQCD is four times the area of triangle ABP, then BP : PQ : QC is:
Correct Answer: C. 2 : 4 : 1
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Q18- A triangle is drawn with its vertices on the circle C such that one of its sides is a
diameter of C and the other two sides have their lengths in the ratio a:b. If the radius of the
circle is r, then the area of the triangle is:
Correct Answer: D. (2ab r²)/(a²+b²)
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Q19- The area of the quadrilateral bounded by the Y-axis, the line x=5, and the lines |x−y|−|x−5|=2, is:
Correct Answer: 45
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Q20- Let both the series a₁,a₂,a₃,… and b₁,b₂,b₃,… be in arithmetic progression such that the
common differences of both the series are prime numbers. If a₅=b₉, a₁₉=b₁₉ and b₂=0, then
a₁₁ equals:
Correct Answer: A. 79
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Q21- If p² + q² − 29 = 2pq − 20 = 52 − 2pq, then the difference between the maximum and minimum possible value of (p³ − q³) is:
Correct Answer: C. 378
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Q22- Let an and bn be two sequences such that an = 13 + 6(n−1) and bn = 15 + 7(n − 1) for all
natural numbers n. Then, the largest three-digit integer that is common to both these sequences is:
Correct Answer: 967
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