Quantitative Aptitude - Arithmetic Ability Questions

Q:

Simplify (b5x2a3z4)*(b3x2a4z5) / (a2b3z2)

A) b5x4a5z5 B) b5x4a5z7
C) b5x4a4z7 D) b4x4a5z7
 
Answer & Explanation Answer: B) b5x4a5z7

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Two men are on opposite sides of a tower. They measure the angles of elevation of the top of the tower as 30 ̊ and 45 ̊ respectively. If the height of the tower is 50 m, the distance between the two men is (Take √3 = 1.73)

A) 136.5 m B) 50 √3 m
C) 100 √3 m D) 135.5 m
 
Answer & Explanation Answer: A) 136.5 m

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Filed Under: Height and Distance
Exam Prep: Bank Exams

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Q:

A rectangular playground ground of length 125 m and width 75 m, has a walking strip of width 3 m in the middle of the ground, along the longer side. What is the area of the ground without the walking strip?

A) 9375 sq.m B) 9000 sq.m
C) 9750 sq.m D) 8625 sq.m
 
Answer & Explanation Answer: B) 9000 sq.m

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The mean of marks secured by 30 students in division-A of class X is 67, 55 students of division-B is 63 and that of 40 students of division-C is 61. What is the mean of marks of the students of three divisions of Class X?

A) 63.32 B) 62.62
C) 61.92 D) 64.72
 
Answer & Explanation Answer: A) 63.32

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Filed Under: Average
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Q:

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Rs. 1. The sum (in Rs.) is:

A) 620 B) 630
C) 640 D) 625
 
Answer & Explanation Answer: D) 625

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

Two donkeys are standing 400 meters apart. First donkey can run at a speed of 3 m/sec and the second can run at 2 m/sec. If two donkeys run towards each other after how much time (in sec) will they bump into each other?

A) 60 B) 80
C) 400 D) 40
 
Answer & Explanation Answer: B) 80

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is

A) 6x2y - 8xy2 + 15y2z B) 6x2y + 8xy2 - 15y2z
C) 6x2y + 8xy2 - 15y2z - 20xyz D) 6x2y - 8xy2 + 15y2z + 20xyz
 
Answer & Explanation Answer: B) 6x2y + 8xy2 - 15y2z

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Q:

In an alloy of German silver the ratio of copper to zinc was 17:7 while that of nickel to zinc was 4 :3. The ratio of copper to zinc to nickel in the alloy was

A) 17 : 21 : 4 B) 51 : 21 : 28
C) 68 : 28 : 21 D) 17 : 28 : 3
 
Answer & Explanation Answer: B) 51 : 21 : 28

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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