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Q:

LCM of two co-prime numbers a and b is (a is greater than b):

A) a B) a+b
C) ab D) b
 
Answer & Explanation Answer: C) ab

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

Q:

Given is a statement followed by two arguments numbered I and II. Consider the statement and the arguments and decide which of the arguments is strong.
Statement:
Is the choice of junk food a better option to create interest in eating in children?
Arguments:
I. Yes, the best way to create interest is to give the food a child likes.
II. No. junk food is the reason behind obesity, heart diseases, diabetes and other health problems and it is important to induce healthy eating habits in children.

A) Only argument II is strong. B) Both arguments I and II are strong.
C) Neither argument I nor H is strong. D) Only argument I is strong.
 
Answer & Explanation Answer: A) Only argument II is strong.

Explanation:
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Filed Under: Statement and Arguments
Exam Prep: AIEEE , Bank Exams , CAT

Q:

The LCM and HCF of two numbers are 4284 and 32, respectively. If one of the numbers is 672, then the second number is;

A) 102 B) 64
C) 204 D) 92
 
Answer & Explanation Answer: C) 204

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

Q:

The HCF of two numbers is 11 and their LCM is 330. If one of the number is 55. Find the other number.

A) 33 B) 66
C) 44 D) 77
 
Answer & Explanation Answer: B) 66

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

Q:

The given pie chart shows information about the mobile phone manufacturing companies in India. The total number of 0 mobile phone units manufactured is 12,40,000 units.

Which company produces the maximum number of mobile phones?

A) XYZ B) PQR
C) ABC D) LMN
 
Answer & Explanation Answer: D) LMN

Explanation:
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Filed Under: Pie Charts
Exam Prep: AIEEE , Bank Exams , CAT

Q:

What will come in place of the question mark (?) in the following number series?

17, 98, 26, 89, 35, ?

A) 80 B) 75
C) 67 D) 53
 
Answer & Explanation Answer: A) 80

Explanation:

1. Ans. A.
98 = 17 + 81
26 = 98 – 72
89 = 26 + 63
35 = 89 – 54
? = 35 + 45, i.e. ? = 80

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: AIEEE , Bank Exams , GATE

Q:

What will come in place of the question mark (?) in the following number series?

3240, 540, 108, 27, ?, 4.5

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

Explanation:

Ans. 
540 = 3240/6
108 = 540/5
27 = 108/4
? = 27/3, i.e. ? = 9

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

Q:

There are four consecutive even integers. Sum of the reciprocals of the first two number is (11/60). Find the reciprocal of third largest number of the series.

A) 1/12 B) 2/14
C) 1/14 D) 2/13
 
Answer & Explanation Answer: C) 1/14

Explanation:

Ans. C.
Let 4 consecutive even numbers are x, x+ 2, x+ 4, x+ 6
According to the question -
1/x + 1/x+2 = 11/60
x+2+x/ x(x+2) = 11/60
2(x+1)/x^2 + 2x = 11/60
120x + 120 = 11x 2 + 22x
11x 2 - 98x – 120 = 0
So ,
X = -24/22 , 10
X = -12/11 , 10
So, the numbers will be 10,12,14,16.
Hence,
Third largest number = 14
Reciprocal of third number = 1/14

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