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What a nuber between 400 and 450?
The number is 425
What number is halfway between 350 and 450?
It is (350 + 450)/2 = 400
What is the halfway point between 400 and 500?
The halfway point between 400 and 500 can be calculated by finding the average of the two numbers. Adding 400 and 500 gives us 900, and dividing that by 2 gives us 450. Therefore, the halfway point between 400 and 500 is 450.
Which number is nearest to 450?
There is no answer to this question. For any number that you care to name, I can pick one that is halfway between your number and 450 - namely the average of your number and 450 or (450+your number)/2. Being halfway between your number and 450, it is clearly nearer to 450. And then, I can find another number that is closer to 450 than that number and so on, for ever.
What is the largest number that rounds 400 to the nearest hundred?
Half of 100 is 50, so the largest number that ought to round to 400 to the nearest 100 would be 400 + 50 = 450; however, numbers exactly half way round up, so the largest whole number that rounds to 400 is one less than this, namely 450 - 1 = 449.
