Quantitative Aptitude - Arithmetic Ability Questions

Q:

Type 1 workers can do three times the work of Type 2 workers. Twelve Type 1 workers can complete a task in 10 days. How many days would it have taken 4 Type 1 and 8 Type 2 workers to complete the same task?

A) 16 B) 17
C) 20 D) 18
 
Answer & Explanation Answer: D) 18

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT

0 1968
Q:

ΔXYZ is right angled at Y. If m∠Z = 60°, then Cosec X =

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

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1967
Q:

If a + b + c = 11 and ab + bc + ca = 17, then what is the value of a3 + b3 + c3  3abc?

A) 121 B) 168
C) 300 D) 770
 
Answer & Explanation Answer: D) 770

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1966
Q:

Reduce 2530/1430 to lowest terms.

A) 47/17 B) 23/13
C) 47/19 D) 29/17
 
Answer & Explanation Answer: B) 23/13

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Filed Under: Simplification
Exam Prep: Bank Exams

1 1966
Q:

If 3x - 10 = -(2x + 5), then the numerical value of (x - 4)3 is

A) 27 B) 125
C) -125 D) -27
 
Answer & Explanation Answer: D) -27

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1966
Q:

Two successive discounts of 10% and 20% are equivalent to a single discount of

A) 28% B) 27%
C) 25% D) 30%
 
Answer & Explanation Answer: A) 28%

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Filed Under: Percentage
Exam Prep: Bank Exams

0 1966
Q:

The average marks of 56 students is shown as 60. It includes a wrong entry of 92 marks instead of 29 marks. The correct average is _____ .

A) 58.875 marks B) 61.125 marks
C) 63.375 marks D) 56.625 marks
 
Answer & Explanation Answer: A) 58.875 marks

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Filed Under: Average
Exam Prep: Bank Exams

3 1966
Q:

In a class of 66 students there are 33 girls. The average weight of these girls is 61 Kg and average weight of the full class is 66 kgs. What is the average weight of the boys of the class?

A) 72 B) 73
C) 69 D) 71
 
Answer & Explanation Answer: D) 71

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Filed Under: Average
Exam Prep: Bank Exams

1 1965