CAT 2015 Question Paper for QA was rated moderately difficult. The question paper had 34 questions, in which 15 questions were Non-MCQ type and the rest were MCQs. CAT 2015 question Paper was much more difficult than CAT 2014 question paper. CAT 2015 Question Paper for QA had questions from regular topics like Algebra, Modern Math, Geometry, Arithmetic, and Number System. Attempting 25-27 questions with 90% accuracy was considered good.

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CAT 2015 Question Paper with Solution PDF – QA Slot 1

CAT 2015 Question Paper With Answer Key – QA Slot 1

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Question 1:

If the sum of two numbers is 15 and their product is 56, what is the sum of their reciprocals?

  • (a) \(\dfrac{15}{56}\)
  • (b) \(\dfrac{56}{15}\)
  • (c) \(\dfrac{1}{15}\)
  • (d) \(\dfrac{1}{56}\)

Question 2:

A shopkeeper sells an item at a 20% discount on the marked price and still makes a 25% profit on the cost price. If the cost price is Rs. 400, what is the marked price?

  • (a) Rs. 500
  • (b) Rs. 600
  • (c) Rs. 625
  • (d) Rs. 700

Question 3:

The ratio of the speeds of two trains is 3:4. If the second train covers 400 km in 5 hours, what is the speed of the first train?

  • (a) 60 km/h
  • (b) 80 km/h
  • (c) 90 km/h
  • (d) 120 km/h

Question 4:

If \(a + b + c = 12\) and \(a^2 + b^2 + c^2 = 50\), what is the value of \(ab + bc + ca\)?

  • (a) 47
  • (b) 48
  • (c) 49
  • (d) 50

Question 5:

A man travels 300 km, partly at 60 km/h and partly at 80 km/h. If the total time taken is 4.5 hours, how many kilometers did he travel at 60 km/h?

  • (a) 120 km
  • (b) 150 km
  • (c) 180 km
  • (d) 200 km

Question 6:

The HCF of two numbers is 12, and their LCM is 144. If one number is 36, what is the other number?

  • (a) 48
  • (b) 60
  • (c) 72
  • (d) 96

Question 7:

A pipe can fill a tank in 6 hours, and another pipe can empty it in 8 hours. If both pipes are opened together, how long will it take to fill the tank?

  • (a) 24 hours
  • (b) 36 hours
  • (c) 48 hours
  • (d) Never fills

Question 8:

If \(x^2 - 5x + 6 = 0\), what is the value of \(x^3 - 3x^2 + 2x\)?

  • (a) 6
  • (b) 12
  • (c) 18
  • (d) 24

Question 9:

A boat travels 36 km downstream in 3 hours and 24 km upstream in 3 hours. What is the speed of the boat in still water?

  • (a) 10 km/h
  • (b) 11 km/h
  • (c) 12 km/h
  • (d) 13 km/h

Question 10:

If \(\log_2 x + \log_4 x = 5\), what is the value of \(x\)?

  • (a) 4
  • (b) 8
  • (c) 16
  • (d) 32

Question 11:

A sum of money doubles in 4 years at a certain rate of compound interest. In how many years will it become 8 times?

  • (a) 8 years
  • (b) 10 years
  • (c) 12 years
  • (d) 16 years

Question 12:

The area of a circle is \(154\) cm². What is the circumference of the circle?

  • (a) 22 cm
  • (b) 44 cm
  • (c) 66 cm
  • (d) 88 cm

Question 13:

If \(3x + 4y = 12\) and \(x - y = 1\), what is the value of \(x + y\)?

  • (a) \(\dfrac{25}{7}\)
  • (b) \(\dfrac{16}{7}\)
  • (c) \(\dfrac{9}{7}\)
  • (d) \(\dfrac{7}{2}\)

Question 14:

A man invests Rs. 5000 at 5% simple interest per annum. How much interest will he earn after 3 years?

  • (a) Rs. 750
  • (b) Rs. 800
  • (c) Rs. 850
  • (d) Rs. 900

Question 15:

The sum of the first \(n\) terms of an arithmetic progression is \(S_n = 3n^2 + 2n\). What is the 5th term?

  • (a) 15
  • (b) 29
  • (c) 19
  • (d) 21

Question 16:

If \(2^x = 3^y = 6^z\), what is the value of \(xy\) in terms of \(z\)?

  • (a) \(z^2\)
  • (b) \(2z\)
  • (c) \(3z\)
  • (d) \(6z\)

Question 17:

A rectangular garden has a perimeter of 100 meters and an area of 600 m². What is the length of the garden?

  • (a) 20 m
  • (b) 30 m
  • (c) 40 m
  • (d) 50 m

Question 18:

What is the remainder when \(3^{100}\) is divided by 7?

  • (a) 1
  • (b) 2
  • (c) 3
  • (d) 4

Question 19:

A and B can complete a work in 12 days, B and C in 15 days, and A and C in 20 days. How long will A alone take to complete the work?

  • (a) 20 days
  • (b) 24 days
  • (c) 30 days
  • (d) 36 days

Question 20:

The sum of the squares of three consecutive integers is 110. What is the smallest integer?

  • (a) 5
  • (b) 6
  • (c) 7
  • (d) 8

Question 21:

A car travels from A to B at 60 km/h and returns at 40 km/h. If the total time taken is 5 hours, what is the distance between A and B?

  • (a) 100 km
  • (b) 120 km
  • (c) 150 km
  • (d) 180 km

Question 22:

If the roots of the equation \(x^2 - kx + 16 = 0\) are integers, what is the sum of the roots?

  • (a) 4
  • (b) 6
  • (c) 8
  • (d) 10

Question 23:

A shop sells two types of pens at Rs. 10 and Rs. 15 each. If 50 pens are sold for Rs. 650, how many pens of Rs. 10 were sold?

  • (a) 20
  • (b) 25
  • (c) 30
  • (d) 35

Question 24:

What is the probability of getting a sum of 7 when two dice are rolled?

  • (a) \(\dfrac{1}{6}\)
  • (b) \(\dfrac{1}{12}\)
  • (c) \(\dfrac{1}{9}\)
  • (d) \(\dfrac{1}{36}\)

Question 25:

The cost price of an article is Rs. 200. It is sold at a 10% discount on the marked price, yielding a 25% profit. What is the marked price?

  • (a) Rs. 250
  • (b) Rs. 275
  • (c) Rs. 300
  • (d) Rs. 350

Question 26:

If \(a, b, c\) are in geometric progression and \(a + b + c = 21\), \(abc = 216\), what is the value of \(b\)?

  • (a) 6
  • (b) 7
  • (c) 8
  • (d) 9

Question 27:

A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less. What is the speed of the train?

  • (a) 40 km/h
  • (b) 45 km/h
  • (c) 50 km/h
  • (d) 55 km/h

Question 28:

If the area of a square is 64 cm², what is the length of its diagonal?

  • (a) 8 cm
  • (b) \(8\sqrt{2}\) cm
  • (c) 16 cm
  • (d) \(16\sqrt{2}\) cm

Question 29:

A sum of Rs. 1000 is divided among A, B, and C in the ratio 2:3:5. How much does C get?

  • (a) Rs. 400
  • (b) Rs. 450
  • (c) Rs. 500
  • (d) Rs. 550

Question 30:

If \(x^2 + y^2 = 25\) and \(xy = 12\), what is the value of \(x + y\)?

  • (a) 5
  • (b) 7
  • (c) 9
  • (d) 11

Question 31:

A shopkeeper marks up an article by 25% and then offers a 20% discount. What is the net profit percentage?

  • (a) 0%
  • (b) 5%
  • (c) 10%
  • (d) 15%

Question 32:

The number of ways to arrange 5 distinct books on a shelf is:

  • (a) 60
  • (b) 120
  • (c) 240
  • (d) 720
 

CAT 2015 QA Paper Analysis

CAT 2015 Question Paper was conducted by IIM Ahmedabad on November 29, 2015. IIM Ahmedabad conducted forenoon and afternoon sessions for the examination.

  • This moderate difficulty section was dominated by questions from Algebra, Geometry, and Arithmetic.
  • The questions were designed to test the grasp of basic fundamentals.
  • CAT 2015 QA question paper had no questions from the Number System.

Follow the table below to understand the complete CAT 2015 QA Question Paper analysis- distribution of questions:

Topics Number of Questions
Number System 0
Algebra 14
Arithmetic 10
Modern Math 3
Trigonometry (Height & Distance) 2
Geometry and Mensuration 5

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