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Class -5 - Mathematics-LCM and HCF-1

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What is the greatest common factor of 81 and 180?

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The G.C.D. of 1.08, 0.36 and 0.9 is :

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A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. After what time will they again at the starting point?

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Find the highest common factor of 36 and 84.4

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

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What is the greatest common factor of 45 and 105?

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The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is :

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he 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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What is the greatest common factor of 27 and 126?

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The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is :

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What is the greatest common factor of 60 and 225?

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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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The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is :

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The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is:

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What is the greatest common factor of 126 and 196?

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The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is :

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The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is :

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What is the greatest common factor of 180, 225 and 270?

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What is the greatest common factor of 196 and 462?

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What is the greatest common factor of 72 and 252?

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