i did not understand example 1. can anyone explain me?

To get the answer, you have to keep dividing 400 by 2 until you get 52 or 25. The number of times you you divide 400 by 2 will be the value of 'x' 

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you have to take the HCF of 400

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To get the answer, you have to keep dividing 400 by 2 until you get 5or 25. The number of times you you divide 400 by 2 will be the value of 'x '

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To get the answer, you have to keep dividing 400 by 2 until you get 5 The number of times you divide 400 by 2 will be the value of 'x'
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Anyone explain him. Please ....I hope that anyone will listen and will help you .....don't need to say thanks....I understand
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Take the hcf of 400
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You will have to take the HCF of 400
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jwwwwww
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Which example 1 do you need?
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Which example 1 do you need?
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which example
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Which example do you need?
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    pls be clear with your question
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    Okay.....
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    send image
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    What are you looking for?