Quantitative Aptitude - Arithmetic Ability Questions

Q:

The reciprocal of the sum of the reciprocals of 8/7 and 5/6 is:

A) 83/40 B) 42/83
C) 83/42 D) 40/83
 
Answer & Explanation Answer: D) 40/83

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

A trader buys 500 kgs of cotton for Rs 9,000. 10% of this cotton is spoiled due to rain. At what rate (Rs/Kg) should he sell the rest to earn 10% profit?

A) 25 B) 30
C) 22 D) 20
 
Answer & Explanation Answer: C) 22

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

In these questions, a question is given followed by information in three statements. You have to consider the information in all the three statements and decide the information in which of the statement(s) is not necessarily required to answer the question and therefore can be dispensed with. Indicate your answer accordingly How many students from institute 'A' got placement?

I. Number of students studying in institutes A and B are in the ratio of 3:4 respectively.

II. Number of students who got placement from institute B is 120% of the number of students who got placement from institute A

III. 80% of the students studying in institute B got placement.

A) None of the statements can be dispensed with B) Only I
C) Only II D) Any one of the three
 
Answer & Explanation Answer:

Explanation:

From I No. of students studying in A and B are 3x and 4x respectively.
From II No. of students studying in B who got placement = (4x × 80) ÷ 100 = 16x/5
Hence Question cannot be answered even with the information in all the three statements
Hence option 5 is correct

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Q:

In the triangle ABC,∠BAC = 50° and the bisectors of ∠ABC and ∠ACB meets at P. What is the value (in degrees) of ∠BPC?

A) 100 B) 105
C) 115 D) 125
 
Answer & Explanation Answer: C) 115

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Q:

What is the value of 34+122 ?

A) 13 B) 15
C) 17 D) 19
 
Answer & Explanation Answer: B) 15

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If x = 3+13, then the value of x-12642x-1x-233 is

A) √3/6 B) 2√3/6
C) 5/6 D) 2/3
 
Answer & Explanation Answer: C) 5/6

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Exam Prep: Bank Exams

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Q:

If 4x + 1x = 5, (x0), then the value of 5x4x2+10x+1 is

A) 1/2 B) 1/3
C) 2/3 D) 3
 
Answer & Explanation Answer: B) 1/3

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Q:

ax + 3y = 6 has slope -2/3. What is the value of a?

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

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