The L.C.M. of two numbers is 48. The numbers are in the ratio 2:3. Then sum of the number is:
40
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35
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1
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Four bells ring at intervals of 6, 8, 12 and 18 seconds respectively since 12 o’clock. How many times will they ring simultaneously within 6 minutes of the time? (excluding the one at the start)
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2
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What is the least number which when divided by 5, 6, 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder?
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3
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How many numbers are there between 2000 and 4000 which are divisible by 2,3,4 and 5?
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4
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The LCM and HCF of two numbers are 84 and 21, respectively. If the ratio of the two numbers is 1 : 4, then the larger of the two numbers is
SolutionAnswer 84 
5
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The sum of two numbers is 528 and their HCF is 33. The number of such pairs is :
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6
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(4^{61}+4^{62}+4^{63}+4^{64}) is divisible by
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7
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The H.C.F. and L.C.M. of 0.63, 1.05 and 2.1
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8
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HCF of 3240, 3600 and a third number is 36 and their LCM is 2^{4}×3^{5}×5^{2}×7^{2} Then the third number is
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9
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The H.C.F and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125 , then that number is
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10
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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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