Quantitative Aptitude - Arithmetic Ability Questions

Q:

The area of an equilateral triangle is 25√3 sq.cm. Find its side (in cm).

A) 10 B) 5
C) 20 D) 30
 
Answer & Explanation Answer: A) 10

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Filed Under: Area
Exam Prep: Bank Exams , CAT

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Q:

Selling price of a table is Rs 2808. If profit percentage is 17%, then what is the cost price (in Rs) of table?

A) 2288 B) 2300
C) 2400 D) 3285
 
Answer & Explanation Answer: C) 2400

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Filed Under: Percentage
Exam Prep: Bank Exams , CAT

2 1363
Q:

In ΔABC , DE || AC. Where D and E are two points lying on AB and BC respectively. If AB = 5 cm and AD = 3 cm, then BE : EC is

A) 2:3 B) 3:2
C) 5:3 D) 3:5
 
Answer & Explanation Answer: A) 2:3

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

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Q:

In the given figure, CD and AB are diameters of circle and AB and CD are perpendicular to each other. LQ and SR are perpendiculars to AB abd CD respectively. Radius of circle is 5 cm, PB : PA = 2 : 3 and CN: ND = 2 : 3. What is the length (in cm) of SM ?

 

A) [(5√3) – 3] B) [(4√3) – 2]
C) [(2√5) – 1] D) [(2√6) – 1]
 
Answer & Explanation Answer: D) [(2√6) – 1]

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Q:

The average age of 80 boys in a class is 15 years. The average age of a group of 15 boys in the class is 16 years and the average age of another 25 boys in the class is 14 years. What is the average age of the remaining boys in the class?

A) 15.25 years B) 14 years
C) 14.75 years D) Cannot be determined
 
Answer & Explanation Answer: A) 15.25 years

Explanation:

Total sum of age of 80 students of the class = 15 X 80 = 1200 years
15 students → 15 X 16 = 240 years
25 students → 25 X 14 = 350 years
Sum of 40 students = 590 years
Total age of remaining 40 students = 1200 – 590 = 610
So, average age = 15.25 years

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

The average weight of two players P and Q of a football team is 38 kg. The average weight of P, Q and their coach T is 49 kg. What is the weight (in kg) of coach?

A) 71 B) 46
C) 76 D) 91
 
Answer & Explanation Answer: A) 71

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Filed Under: Average
Exam Prep: GATE , Bank Exams
Job Role: Bank PO , Bank Clerk

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Q:

3 numbers whose average is 112, the first number is 1/6th the sum of other 2. What is the first number?

A) 45 B) 30
C) 15 D) 48
 
Answer & Explanation Answer: D) 48

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

If x + √5 = 5 + √y, and x, y are positive integers, then the value of x+yx + y

A) 1 B) 2
C) √5 D) 5
 
Answer & Explanation Answer: A) 1

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Filed Under: Simplification
Exam Prep: Bank Exams

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