Quantitative Aptitude - Arithmetic Ability Questions

Q:

In a class of 65 students there are 39 girls. The average weight of these girls is 60 Kg and average weight of the full class is 64 kgs. What is the average weight of the boys of the class?

A) 69 B) 66
C) 68 D) 70
 
Answer & Explanation Answer: D) 70

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

Two taps P and Q can fill a tank in 24 hours and 18 hours respectively. If the two taps are opened at 11 a.m., then at what time (in p.m.) should the tap P be closed to completely fill the tank at exactly 2 a.m.?

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

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Filed Under: Pipes and Cistern
Exam Prep: Bank Exams

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Q:

The ratio of speeds of X and Y is 5:7. Y covers a distance of 420 km in 3 hours. What is the speed of X?

A) 80 kmph B) 90 kmph
C) 120 kmph D) 100 kmph
 
Answer & Explanation Answer: D) 100 kmph

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Filed Under: Time and Distance
Exam Prep: Bank Exams , CAT

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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 following question, select the odd number from the given alternatives.

A) 253 B) 473
C) 143 D) 633
 
Answer & Explanation Answer: D) 633

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

A rectangular swimming pool of length 20 m and breadth 10 m has a uniformly sloping floor. It is 1 m in depth on one end of its length and 3 m at the other. How much water is needed to completely fill this pool? (Take π = 22/7)

A) 800 cubic metres B) 300 cubic metres
C) 480 cubic metres D) 400 cubic metres
 
Answer & Explanation Answer: D) 400 cubic metres

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

In ABC two medians BE and CF intersects at the point O and P,Q are the midpoints of BO and CO respectively. If the length of PQ=3cm, then the length of FE will be

A) 3 cm B) 6 cm
C) 9 cm D) 12 cm
 
Answer & Explanation Answer: A) 3 cm

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

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Q:

A number is divided by 52, we get 27 as remainder. On dividing the same number by 13, what will be the remainder?

A) 2 B) 7
C) 1 D) None
 
Answer & Explanation Answer: C) 1

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams , CAT

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