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HCF of 17 and 68 is 17 ..( Lowest Prime factor )

LCM Of 102 and 476 is 7*2^2*3*17 which is 1428 ..

==> Sum of HCF and LCM are 1428+17= 1445 .

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Q: If the HCF and LCM of two numbers are 17 and 102 respectively and the HCF and LCM of two other numbers are 68 and 476 respectively then find the sum of the HCF and LCM of these four numbers?
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The average of six numbers is 4 If the average of two of those numbers is 2 what is the average of the other four numbers?


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Average is the sum of numbers divided by n. It is also called the mean average.Here is an example to find the average of numbers:Let's say you want to find the average of four numbers, 26, 14, 11, and 9.First you need to add up those 4 numbers. 26 + 14 + 11 + 9 = 60.Then you need to divide the result (60), by the numbers of numbers there are, in this case 4, because there are four numbers you want to find the average.60 divided by 4 = 15, so the average of the numbers 26, 14, 11, and 9 is 15.

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