Aptitude and Reasoning Questions

Q:

In the question, two equations I and II are given. You have to solve both the equations and give answer

x2-11x+28=0y2-18y+81=0

A) x > y B) x < y
C)  x=y, or relation cannot be established between x and y D) x ≥ y
 
Answer & Explanation Answer: B) x < y

Explanation:

x2 – 11x + 28=0

x2 – 7x – 4x + 28=0

x (x-7) – 4 (x-7)=0

(x-4) (x-7)=0 x=4, 7

y2 – 18y + 81=0

y2 –9y – 9y + 81=0

y (y-9) – 9 (y-9)=0

(y-9) (y-9)=0 y=9, 9

So, x<y.

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Q:

A shopkeeper by selling 8 iphones, earns a profit equal to the selling price of 3 iphones. His profit percentage is

A) 60 percent B) 37.5 percent
C) 75 percent D) 15 percent
 
Answer & Explanation Answer: A) 60 percent

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

A solid cone of height 24 cm and radius of its base 8 cm is melted to form a solid cylinder of radius 6 cm and height 6 cm. In the whole process what
percent of material is wasted?

A) 48.5 B) 37.5
C) 57.8 D) 64
 
Answer & Explanation Answer: C) 57.8

Explanation:
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

An engineering student has to secure 25% marks to pass. He gets 47 and fails by 43 marks. What are the maximum marks of the examination?

A) 385 marks B) 410 marks
C) 360 marks D) 435 marks
 
Answer & Explanation Answer: C) 360 marks

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

A train has to cover a distance of 900 km in 25 hours. What should be its average speed in meters/second?

A) 20 B) 10
C) 18 D) 36
 
Answer & Explanation Answer: B) 10

Explanation:
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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

The point Q(a,b) is first reflected in y­axis to Q1 and Q1 is reflected in x­axis to (­6,2). The co­ordinates of point Q are

A) (-­6,­2) B) (2,­-6)
C) (6,­-2) D) (­-2,6)
 
Answer & Explanation Answer: C) (6,­-2)

Explanation:
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Q:

If 2secA - (1 + sinA)/cosA = x, then the value of x is

A) cosecA/(1+sinA) B) cosA/(1+sinA)
C) cosA(1+sinA) D) cosecA(1+sinA)
 
Answer & Explanation Answer: B) cosA/(1+sinA)

Explanation:
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Q:

If x2+1x2 = 2, then the value of x - 1x is

A) -2 B) 0
C) 1 D) -1
 
Answer & Explanation Answer: B) 0

Explanation:
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