⌈ 2 1 ⌉ + ⌈ 2 1 + 1 0 0 1 ⌉ + ⌈ 2 1 + 1 0 0 2 ⌉ + ⌈ 2 1 + 1 0 0 3 ⌉ + . . . + ⌈ 2 1 + 1 0 0 2 9 9 ⌉ = ?
Note: ⌈ x ⌉ denotes the ceiling function, which is defined as the smallest integer that not less than x .
Bonus : How did I name the problem?
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Solution is similar to the one already posted.
747 for Boeing 747 which is also known as the Queen of the Skies, hence the name :)
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Divide to range of the members based on numerator in each item of the given exp: 5 0 → 1 0 0 : 5 0 1 0 1 → 2 0 0 : 2 ∗ 1 0 0 2 0 1 → 3 0 0 : 3 ∗ 1 0 0 3 0 1 → 3 4 9 : 4 ∗ 4 9 So it is very easy to get the expression: R = 4 ∗ 4 9 + 5 0 0 + 5 1 = 7 4 7