Quantitative Aptitude - Arithmetic Ability Questions

Q:

A sum of Rs. 1200 is lent to be paid back in 5 equal annual installments of Rs. 264 each. The rate of interest per annum is

A) 6% B) 8%
C) 2% D) 4%
 
Answer & Explanation Answer: C) 2%

Explanation:
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Filed Under: Simple Interest
Exam Prep: Bank Exams

3 1947
Q:

A solid sphere has a radius 21 cm. It is melted to form a cube. 20% material is wasted in this process. The cube is melted to form hemisphere. In this process 20% material is wasted. The hemisphere is melted to form two spheres of equal radius. 20% material was also wasted in this process. What is the radius (in cm) of each new sphere?

A) 4.2 (23) B) 2.1 23
C) 2.1 43 D) 4.2 43
 
Answer & Explanation Answer: B) 2.1 23

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

0 1947
Q:

Each question contains Quantity I and Quantity II. Read the contents clearly and answer your questions accordingly.

Quantity I: if the length of a rectangle is increased by 20% while the breadth of the rectangle is decreased by 10% then find percentage change in area of the rectangle?

Quantity II: if the side of a triangle is increased by 30% while the height of a triangle is decreased by 20% then find the percentage change in area of the triangle?

A) Quantity I > Quantity II B) Quantity I ≥ Quantity II
C) Quantity I< Quantity II D) Quantity I < Quantity II
 
Answer & Explanation Answer: A) Quantity I > Quantity II

Explanation:

Quantity I= 20% - 10% - (20*10/100) % = +8%

Quantity II= 30% - 20% - (30*20/100)% = +4%

Hence Quantity I > Quantity II

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Filed Under: Percentage

0 1947
Q:

What will come in the place of question mark (?) in the following question (You do not have to calculate the exact value)?

24.97% of 84.01 ÷ 6.995 = ?

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

Explanation:

Ans. 
25% of 84 ÷ 7 = ?
[(25 × 84)/100]÷ 7 = ?
21÷ 7 = ?
? = 3

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

0 1946
Q:

If a+b=2c then the value of aa-c+cb-c is equal to (where abc)

A) -1 B) 1
C) 0 D) 1/2
 
Answer & Explanation Answer: B) 1

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 1945
Q:

If √3 = 1.732, then the value of 9+233?

A) 7.169 B) 7.196
C) 5.198 D) 7.296
 
Answer & Explanation Answer: B) 7.196

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 1945
Q:

Average of two numbers is 8 and average of other three numbers is 3 ; the average of the five numbers is

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

Explanation:
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Filed Under: Average
Exam Prep: Bank Exams

1 1945
Q:

A  field  can  be  reaped  by  12  men  or  18  women  in  14  days.  In  how  many  days  can  8  men  and  16 women reap it?

A) 26 days B) 24 days
C) 9 days D) 8 days
 
Answer & Explanation Answer: C) 9 days

Explanation:
12 men or 18 women can complete in 14 days
8 men and 16 women can complete in how many days
12men = 18 women (Comparing efficiencies)
1men = 18/12 = 1.5 women
8 men and 16 women = 12women + 16 women = 28 women
18 women completes in 14 days
1 woman completes in 14*18 days
28 women completes in (14*18)/28 days = 9 days
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Filed Under: Time and Work
Exam Prep: Bank Exams

0 1945