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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

A batsman makes a score of 81 runs in the 16th match and thus increases his average runs per match by 3. What is his average after the 16th match?

A) 35 B) 34
C) 33 D) 36
 
Answer & Explanation Answer: D) 36

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Filed Under: Average
Exam Prep: Bank Exams

4 2096
Q:

If 3/4 of the weight of a brick is 7/8 kg, then 5/7 of the weight of the brick will be

A) 20/21 kg B) 5/6 kg
C) 5/8 kg D) 15/32 kg
 
Answer & Explanation Answer: B) 5/6 kg

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Filed Under: Percentage
Exam Prep: Bank Exams

3 2096
Q:

What is the LCM (least common multiple) of 57 and 93?

A) 1767 B) 1567
C) 1576 D) 1919
 
Answer & Explanation Answer: A) 1767

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

6 2096
Q:

If a--b = 4 and ab = 45, find the value of a3 - b3

A) 604 B) 370
C) 253 D) 199
 
Answer & Explanation Answer: A) 604

Explanation:

(a – b)2 = a2 + b2 -2ab ⇒ 16 = a2 + b2 – 90 ⇒ a2 + b2 = 106 a3 – b3 = (a – b) (a2 + b2 + ab) ⇒ a3 – b3 = 4 X (106 + 45) ⇒ a3 – b3 = 4 X 151 ⇒ a3 – b3 = 604

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2096
Q:

In the given figure, PQRS is a quadrilateral. If QR = 18 cmand PS = 9 cm,then what is the area (in sq. cm) of quadrilateral PQRS?

A) (64√3)/3 B) (177√3)/2
C) (135√3)/2 D) (98√3)/3
 
Answer & Explanation Answer: C) (135√3)/2

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Filed Under: Area
Exam Prep: Bank Exams

0 2095
Q:

The average value of property of Agil, Mugilan and Anithais Rs. 130cr. The Property of Agil is 20cr greater than the property value of Mugilan and Anitha property value is 50cr greater than the Agil property value. The value ofproperty of Anitha is

A) 120 cr B) 170 cr
C) 100 cr D) 150 cr
 
Answer & Explanation Answer: B) 170 cr

Explanation:
Property value of Mugilan x
130 × 3 = x + x + 20 + x + 20 + 50
390 = 3x + 90
3x = 300
X = 100
Anitha = 100 + 20 + 50 = 170
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Filed Under: Numbers
Exam Prep: Bank Exams

2 2094
Q:

The angles of a triangle are in the ratio 1 : 1 : 4. If the perimeter of the triangle is k times its largest side, then what is the value of k?

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

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Filed Under: Area
Exam Prep: Bank Exams

3 2094
Q:

Find the radius of the circle if the area of its sector is 30.8 sq cm whose corresponding central angle is 72°?

A) 3.5 cm B) 7 cm
C) 14 cm D) 10.5 cm
 
Answer & Explanation Answer: B) 7 cm

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Filed Under: Area
Exam Prep: Bank Exams

0 2094