Sawaal
448
Q:

Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is:

A) 40 B) 80
C) 120 D) 200

Answer:   A) 40



Explanation:

Let the numbers be 3x, 4x and 5x.

 

Then, their L.C.M. = 60x.

 

So, 60x = 2400 or x = 40.

 

 The numbers are (3 x 40), (4 x 40) and (5 x 40).

 

Hence, required H.C.F. = 40.

Subject: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Related Questions
Q:

Consider a two-digit number. The difference between the number and the number we get when its digits are reversed is 27. If the sum of the digits in the given number is 9, find the HCF of the number and the number when its digits are reversed.

 

A) 6 B) 4
C) 9 D) 5
 
Answer & Explanation Answer: C) 9

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

3 147
Q:

The LCM of 15x3y4 and 12x2y5

 

A) 25x3y5 B) 15x3y5
C) 12x3y3 D) 60x3y5
 
Answer & Explanation Answer: D) 60x3y5

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

1 635
Q:

The LCM of the three numbers 45, 25 and 35 is:

 

 

A) 1400 B) 1225
C) 1575 D) 1800
 
Answer & Explanation Answer: C) 1575

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

1 1409
Q:

What is the HCF of 132 and 176?

 

A) 33 B) 66
C) 44 D) 22
 
Answer & Explanation Answer: C) 44

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

1 681
Q:

The HCF of 96, 156 and 60 is

A) 3 B) 48
C) 12 D) 4
 
Answer & Explanation Answer: C) 12

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 269
Q:

The LCM of 60 and 54 is

 

A) 6 × 5 × 9 B) 6 × 10 × 3
C) 6 × 10 × 9 D) 60 × 54
 
Answer & Explanation Answer: C) 6 × 10 × 9

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 1366
Q:

The LCM of 145 and 87 is:

 

A) 580 B) 725
C) 290 D) 435
 
Answer & Explanation Answer: D) 435

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 1954
Q:

Find the HCF of 48, 92 and 140.

 

A) 8 B) 6
C) 4 D) 3
 
Answer & Explanation Answer: C) 4

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 2633