Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 7

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IMPORTANT

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The traffic lights at three different road crossings change after every $48$ seconds, $72$ seconds and $108$ seconds respectively. If they all change simultaneously at $8 : 20 : 00$ hours, then they will again change simultaneously at:

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Important Questions on HCF and LCM

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Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 8

The HCF of two numbers is

16

and their LCM is

160

. If one of the number is

32

, then the other number is:

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Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 9

The HCF of the two numbers is

12

and their difference is also

12

. The numbers are:

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Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 10

The largest number which exactly divides

210, 315, 147

and

161

is:

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Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 11

The least perfect square number which is divisible by

3, 4, 5, 6

and

8

is:

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Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 12

The smallest number which is divisible by

12, 15, 20

and is a perfect square, is:

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Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 13

The sum of two numbers is

216

and their HCF is

27

. The numbers are:

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Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 14

The HCF and LCM of the two numbers are

44

and

264

respectively. If the first number is divided by

2

, the quotient is

44

. The other number is:

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IMPORTANT

Himachal Pradesh Patwari Recruitment Exam - Arithmetic>Chapter 2 - HCF and LCM>Multiple Choice Questions>Q 15

The number of prime factors in $2^{222} \times 3^{333} \times 5^{555}$ is: