Aptitude and Reasoning Questions

Q:

From the top of a 20 m high building, the angle of elevation of the top of a tower is 60° and the angle of depression of it's foot is at 45°, then the height of the tower is (√3=1.732)

A) 45.46 m B) 45.64 m
C) 54.64 m D) 54.46 m
 
Answer & Explanation Answer: C) 54.64 m

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Filed Under: Height and Distance
Exam Prep: Bank Exams

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Q:

In a triangle ABC, AD is angle bisector of ∠A and AB : AC = 3 : 4. If the area of triangle ABC is 350 cm2, then what is the area (in cm2) of triangle ABD?

A) 150 B) 200
C) 210 D) 240
 
Answer & Explanation Answer: A) 150

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

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Q:

Find the radius of the circle if the length of its arc is 33 cm whose corresponding central angle is 90° ?

A) 21 cm B) 14 cm
C) 7 cm D) 28 cm
 
Answer & Explanation Answer: A) 21 cm

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Q:

The Simple Interest(SI) for 16 years on an amount at particular rate is Rs 10000. If the principal is doubled at an interval of every 4 years and the rate is tripled at every such in terval, find the new Simple Interest(SI)

A) 632100 B) 689620
C) 602260 D) 647500
 
Answer & Explanation Answer: D) 647500

Explanation:
Let New SI be X

10000/16 = X/4(1*1+2*3+4*9+8*27)

10000/16=X/4(1+6+36+216)

X=647500

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

If cosec+sincosec-sin=53  then the value of sinis equal to

A) 1/2 B) 12
C) 32 D) 1
 
Answer & Explanation Answer: A) 1/2

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Q:

The surface area of a sphere is 1386 cm2.  Find its diameter (in cm)

A) 10.5 B) 42
C) 21 D) 31.5
 
Answer & Explanation Answer: C) 21

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Q:

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

 

A) 18   B) 25  
C) 24   D) 21
 
Answer & Explanation Answer: B) 25  

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

The ratio of present ages of Rangitha and Shaheen is 6:5. After 12 years the ratio of their ages will be 7:6. What is Rangitha's present age?

A) 60 B) 55
C) 72 D) 28
 
Answer & Explanation Answer: C) 72

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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