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Problems On H.C.F And L.C.M
practice.

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Q21

Open question

The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:

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Q22

Open question

Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is:

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Q23

Open question

Find the highest common factor of 36 and 84

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Q24

Open question

Which of the following fraction is the largest ?

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Q25

Open question

The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:

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Q26

Open question

The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively, is:

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Q27

Open question

Which of the following has the most number of divisors?

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Q28

Open question

The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is:

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Q29

Open question

The H.C.F. of

\frac{9}{10},

\frac{12}{25},

\frac{18}{35}

and

\frac{21}{40}

is:

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Q30

Open question

If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:

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Q31

Open question

The HCF and LCM of two numbers are 8 and 48 respectively. If one of the number is 24, then the other number is = ?

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Q32

Open question

The least number which when divided by 4, 6, 8, 12 and 16 leaves remainder of 2 in each case is = ?

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Q33

Open question

The LCM of two numbers is 495 and their HCF is 5. If the sum of the numbers is 100, then their difference is = ?

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Q34

Open question

Which of the following has most number of divisors?

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Q35

Open question

The HCF of two numbers is 8. Which one of the following can never be their LCM ?

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Q36

Open question

The LCM and the HCF of the numbers 28 and 42 are in the ratio ?

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Q37

Open question

The simplest reduction to the lowest terms of

\frac{116690151}{427863887}

is = ?

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Q38

Open question

The LCM of two numbers is 1820 and their HCF is 26. If one number is 130 then the other number is ?

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Q39

Open question

The HCF of two number 12906 and 14818 is 478. Their LCM is ?

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Q40

Open question

Find the greatest number of five digits which when divided by 3, 5, 8, 12 leaves 2 as remainder ?

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Problems On H.C.F And L.C.Mpractice.

Problems On H.C.F And L.C.M
practice.