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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

In how many different ways could couples be picked from 6 men and 9 women ?

A) 26 B) 54
C) 52 D) 28
 
Answer & Explanation Answer: B) 54

Explanation:

Number of mens = 8

Number of womens = 5

 

Different ways could couples be picked = C16× 9C1 = 9 x 6 = 54 ways.

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Filed Under: Permutations and Combinations
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

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Q:

If a=101 then the value of a(a2-3a+3) is 

A) 1000000 B) 1010101
C) 1000001 D) 999999
 
Answer & Explanation Answer: C) 1000001

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

The LCM of 16, 24, 36, 52 and 54 is?

A) 5618 B) 5216
C) 432 D) 5616
 
Answer & Explanation Answer: D) 5616

Explanation:
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Filed Under: HCF and LCM
Exam Prep: AIEEE , Bank Exams , CAT

5 2544
Q:

The area of a square is 100 sq cm, find length of its diagonal?

A) 10√2 cm B) 10 cm
C) 20 cm D) 20√2 cm
 
Answer & Explanation Answer: A) 10√2 cm

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

3 2541
Q:

Find the fourth proportional to 2, 3, 6.

A) 9 B) 10
C) 7 D) 8
 
Answer & Explanation Answer: A) 9

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

5 2539
Q:

What Principal will yield Rs. 120 as Simple Interest at 6% p.a. in 10 years?

A) ₹ 120 B) ₹ 180
C) ₹ 200 D) ₹ 210
 
Answer & Explanation Answer: C) ₹ 200

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

4 2533
Q:

To make a profit of 20% the selling price of the good is Rs. 240. The cost price of the good is,

A) Rs. 200 B) Rs. 210
C) Rs. 220 D) Rs. 230
 
Answer & Explanation Answer: A) Rs. 200

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

3 2532
Q:

3x2-14x+16=05y2-16y+12=0

A) x > y B) x < y
C) x=y or relation cannot be established between x and y D) x ≥ y
 
Answer & Explanation Answer: C) x=y or relation cannot be established between x and y

Explanation:

3x2 – 14x + 16=0

3x2 –6x – 8x + 16=0

3x (x-2) – 8 (x-2)

(3x-8) (x-2)=0

x=8/3 or 2

5y2 – 16y + 12=0

5y2 – 10y – 6y + 12=0

5y (y-2) – 6 (y-2)=0

(5y-6) (y-2)=0

y=6/5 or 2

Can't be determined.

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Filed Under: Simplification

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