Aptitude and Reasoning Questions

Q:

If sec2A + cosec2A = X, then the value of X is

A) tan2A cot2A B) sinA cosA
C) secA cosecA D) sec2A cosec2A
 
Answer & Explanation Answer: D) sec2A cosec2A

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

There were 42 students in a hostel. Due to the admission of 13 new students, the expenses of the mess increase by Rs. 30 per day while the average expenditure per head diminished by Rs. 3. What was the original expenditure of the mess ?

A) Rs. 630 B) Rs. 580
C) Rs. 470 D) Rs. 690
 
Answer & Explanation Answer: A) Rs. 630

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Q:

What is the value of  4cos90-A sin390+A - 4sin90+A cos390-Acos180+8A2 ?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

S, T and U together can complete a work in 30 days. If the ratio of efficiency of S, T and U is 20 : 15 : 12 respectively, then in how many days U alone can complete the same work?

A) 195/2 B) 235/2
C) 225/2 D) 215/2
 
Answer & Explanation Answer: B) 235/2

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

If A is 6 times more than B, then by what percentage is B is less than A?

A) 64.82 B) 83.33
C) 28.56 D) 85.71
 
Answer & Explanation Answer: D) 85.71

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Filed Under: Percentage
Exam Prep: Bank Exams , CAT

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Q:

Pointing towards a man, Ritika said "He is the son of my grandfather's only son". How is Ritika related to that man?

A) Aunty B) Sister
C) Mother D) Wife
 
Answer & Explanation Answer: B) Sister

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Filed Under: Blood Relations
Exam Prep: Bank Exams

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Q:

A uniformly moving train of length 480 m takes 3 minutes to completely cross a platform. If the same train, with the same speed crosses a pole completely in 30 sec, then the length of the platform is -

A) 1 km B) 600 m
C) 4.8 km D) 1.2 km
 
Answer & Explanation Answer:

Explanation:

Let length of platform be ‘y’metres.

Then, at the platform,Distance travelled = y + (length of train) = (y + 480)m

Then, Speed of train = (y + 480)m / (3x60) sec = (y+480)/180 ...(1)

Also, at the pole,Distance travelled = length of train = 480m

Then, Speed of train = 480m / 30sec = 16 m/s ...(2)

Equating eq.(1) & eq.(2), we get,

(y+480)/180 = 16(y+480) = 16 x 180 = 2880

y = 2880 –480 = 2400m or 2.4 km long platform.

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Filed Under: Problems on Trains
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Job Role: Bank PO , Bank Clerk

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Q:

Nikhil is father in law of Tara. Tara is the wife of Rahul. How is Rahul's brother related to Nikhil?

A) Brother B) Father
C) Son D) Father-in-law
 
Answer & Explanation Answer: C) Son

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Filed Under: Blood Relations
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