Quantitative Aptitude - Arithmetic Ability Questions

Q:

Point P (8 , 5) is the midpoint of segment AB. Co-ordinates of A are (5, y) and B are (x, -3). What is the value of x?

A) -11 B) 11
C) 7 D) -7
 
Answer & Explanation Answer: B) 11

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

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Q:

A solid brass sphere of radius 2.1 dm is converted into a right circular cylindrical rod of length 7cm. The ratio of total surface areas of the rod to the sphere is

A) 3:1 B) 1:3
C) 7:3 D) 3:7
 
Answer & Explanation Answer: C) 7:3

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

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Q:

The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?

A) 19.8 B) 20.5
C) 20 D) 19.5
 
Answer & Explanation Answer: D) 19.5

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?

A) 34 B) 28
C) 25 D) 31
 
Answer & Explanation Answer: D) 31

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

The radius of a sphere is 6 cm. It is melted and drawn into a wire of radius 0.2 cm. The length of the wire is

A) 81 m B) 80 m
C) 75 m D) 72 m
 
Answer & Explanation Answer: D) 72 m

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

ΔXYZ is right angled at Y. If m∠X = 30 deg, then find the value of (sinZ + √3).

A) 4/√3 B) 5/√3
C) 4/3 D) 3√3/2
 
Answer & Explanation Answer: D) 3√3/2

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Out of two numbers, 65% of the smaller number is equal to 45% of the larger number. If the sum of the numbers is 2574, then what is the value of larger number?.

 

A) 1521   B) 1471  
C) 1641   D) 1419
 
Answer & Explanation Answer: A) 1521  

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If sinC + sinD =X, then the value of X is?

A) 2cos[(C+D)/2]sin[(C-D)/2] B) 2sin[(C+D)/2]cos[(C-D)/2]
C) 2cos[(C+D)/2]cos[(C-D)/2] D) 2sin[(C+D)/2]sin[(D-C)/2]
 
Answer & Explanation Answer: B) 2sin[(C+D)/2]cos[(C-D)/2]

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

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