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HCF and LCM Questions for Bank Exam

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Q :  

The number 5769116 is divisible by which of the following numbers?

(A) 4

(B) 5

(C) 12

(D) 8

Correct Answer : A

Q :  

The LCM of x2 − 8x + 15 and x− 5x + 6 is: 

(A) (x - 2) (x - 3) (x − 5)

(B) (x − 6)2 (x + 1) (x − 3) 

(C) (x − 6) (x + 1) (x − 3)

(D) (x + 6) (x + 1) (x − 3)

Correct Answer : A

Q :  

Which of the following numbers is divisible by 11?

(A) 5214341

(B) 5648741

(C) 6598321

(D) 2378965

Correct Answer : A

Q :  

If the four-digit number 463y is divisible by 7, then what is the value of y?

(A) 4

(B) 6

(C) 3

(D) 5

Correct Answer : A

Q :  

If the highest common factor (HCF) of x and y is 15, then the HCF of 36x2 – 81y2 and 81x2 – 9y2 is divisible by __________

(A) 135

(B) 120

(C) 180

(D) 90

Correct Answer : A

Q :  

The product of the two numbers is 1500 and their HCF is 10. The number of such possible pairs is/are: 

(A) 1

(B) 3

(C) 4

(D) 2

Correct Answer : D

Q :  

The HCF of three numbers 98, 175 and 210 will be:

(A) 6

(B) 5

(C) 7

(D) 3

Correct Answer : C

Q :  

The HCF of two numbers is 21 and their LCM is 840. If one of the numbers is 49, then the other number is:

(A) 650

(B) 360

(C) 540

(D) 810

Correct Answer : B

Q :  

If , and , then what is the least common multiple of A, B and C?

(A)

(B)

(C)

(D)

Correct Answer : C

Q :  

Find the LCM of the fractions , and

(A) 12

(B) 24

(C) 36

(D) 35

Correct Answer : A

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