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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

What is the percentage by which an watch’s price was marked up over its cost price?
I. The watch was sold at a profit of 15% after a discount of 8% was allowed on the Marked Price(MP).
II. The Selling Price(SP) of the watch was Rs 2705.

Correct

Answer – 1. The data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question Explanation:
From I, let the MP be Rs 100
The selling price = 100-(100*8)/100 = 92
So cost price = 92 * 100/115 = Rs 80
Difference = 100-80 = 20
Percentage mark up = 20/80 * 100 = 25%
Hence I alone is sufficient to answer the question.

Incorrect

Answer – 1. The data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question Explanation:
From I, let the MP be Rs 100
The selling price = 100-(100*8)/100 = 92
So cost price = 92 * 100/115 = Rs 80
Difference = 100-80 = 20
Percentage mark up = 20/80 * 100 = 25%
Hence I alone is sufficient to answer the question.

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

What is the total volume of the right circular cylinder(in cm)? I. The curved surface area of cylinder is 4752 sq cm. II. The height of the cylinder is equal to the height of a right circular cone of volume 2156 cubic cm and radius 7 cm.

Correct

Answer – 5. The data in both statement I & II together are necessary to answer the question. Explanation :
From I , Curved surface area of the cylinder = 2πrh
2πrh=4620
From II, volume of the cone= 1/3πr^2h
Then 1/3 * 22/7 * 7 * 7 * h= 2156
h=42
Height of the cylinder =42 cm
From I & II ,
Curved surface area = 4752
So 2 * 22/7 * 42 r = 4752
r= 18 cm
volume of the cylinder = πr^2h
=22/7 * 18 * 18 * 42
Hence both are necessary to answer the question

Incorrect

Answer – 5. The data in both statement I & II together are necessary to answer the question. Explanation :
From I , Curved surface area of the cylinder = 2πrh
2πrh=4620
From II, volume of the cone= 1/3πr^2h
Then 1/3 * 22/7 * 7 * 7 * h= 2156
h=42
Height of the cylinder =42 cm
From I & II ,
Curved surface area = 4752
So 2 * 22/7 * 42 r = 4752
r= 18 cm
volume of the cylinder = πr^2h
=22/7 * 18 * 18 * 42
Hence both are necessary to answer the question

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

What is the age of Anu’s mother? I. The ratio of the present ages of Anu and her mother is 4 : 17. II. Anu’s mother is 4 years younger than Anu’s father

Correct

Answer – 4. The data in both the statement I & II together are not sufficient to answer the question.

Incorrect

Answer – 4. The data in both the statement I & II together are not sufficient to answer the question.

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

8 boys and 4 girls can complete a piece of work in 6 days. How many days will it take for 13 boys and 2 girls to complete the same piece of work?
I. 9 boys can complete the work in 12 days.
II. 15 girls can complete the work in 16 days.
III. The amount of work done by a woman is three fourth of the work done by a man in one day.

Correct

Answer – 1. Any of the three

Incorrect

Answer – 1. Any of the three

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

What is the difference between the age of Ajay & Bharat?
I. The ratio of the present age of Ajay to his age after 8 years is 5 : 9
II. The ratio of the present age of Ajay to that of Bharat is 5 : 6
III. The ratio of the present age of Ajay to his age four years before is 8 : 5

Correct

Answer – 3. Only II and I or III

Incorrect

Answer – 3. Only II and I or III

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

Find out the wrong number in the series given below
4, 5, 10, 26, 72, 225

Answer – 3. X ≥ Y
Explanation:
x² – 34x + 273 = 0
x = 13, 21
y² – 20y + 91 = 0
y = 13, 7

Incorrect

Answer – 3. X ≥ Y
Explanation:
x² – 34x + 273 = 0
x = 13, 21
y² – 20y + 91 = 0
y = 13, 7

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Sum of the present ages of Prince and Queen is 41. Age of Prince 2 years hence is equal to age of Rose, One year ago. Age of Prince, 4 years hence is equal to the age of Queen 1 year ago and the ratio of present age of Prince and Sharmi is 3 : 4. Find the sum of the ages of Rose and Sharmi.

Correct

Answer – 4. 45
Explanation:
P + Q = 41 ……(1)
R – 1 = P + 2
R = P + 3
P + 4 = Q – 1
=> Q = P + 5 ….(2)
From (1)&(2)
P = 18
Q = 18 + 5 = 23
R = 18 + 3 = 21
=> P/S = 3/4
=> S = 4/3 x 18 = 24
Sum = S + R = 24 + 21 = 45.

Incorrect

Answer – 4. 45
Explanation:
P + Q = 41 ……(1)
R – 1 = P + 2
R = P + 3
P + 4 = Q – 1
=> Q = P + 5 ….(2)
From (1)&(2)
P = 18
Q = 18 + 5 = 23
R = 18 + 3 = 21
=> P/S = 3/4
=> S = 4/3 x 18 = 24
Sum = S + R = 24 + 21 = 45.

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

A basket contains 3 green balloons, 5 yellow balloons and 7 brown balloons. If one balloon is drawn at random from the basket, what is the probability that it is either brown or green?

Correct

Answer – 1. 2/3
Explanation:
Given number of balloons = 3 + 5 + 7 = 15
One balloon is drawn randomly = 15C1
probability that it is either brown or green = 7C1 + 3C1/15C1 = 7 + 3/15 = 10/15 = 2/3

Incorrect

Answer – 1. 2/3
Explanation:
Given number of balloons = 3 + 5 + 7 = 15
One balloon is drawn randomly = 15C1
probability that it is either brown or green = 7C1 + 3C1/15C1 = 7 + 3/15 = 10/15 = 2/3

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