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Given an unlimited number of light bulbs (that break at a certain height), and a building with 100 floors, how do you determine the height that the light bulb breaks?

The solution is a binary search algorithm (where you start on floor 50th and move up or down depending if the bulb breaks or not, always picking the middle floor of your option range).

Answered by Diana G. • Computing tutor

1640 Views

Personal Statement for English Literature

Huxley's Brave New World speaks to me of the necessity of the imagination, with its clinical eradication of individuality and the discontent that it breeds, through John Savage's understanding that hope l...

Answered by Harriet T. • Personal Statements tutor

2371 Views

Examine how colour is used in Sylvia Plath's poem, Tulips.

In Plath's 'Tulips' the speaker uses a juxtaposition between the white and clinical depiction of the hospital with the excruciating 'redness' of the flowers to present her feelings of pain and anguish. Th...

Answered by Harriet T. • English Literature tutor

9047 Views

What are the steps in semi-conservative DNA replication?

Initially, the DNA is present in the form of a double helix, comprising 2 polynucleotide strands joined by hydrogen bonds between complementary bases. The enzyme helicase unwinds and separates the 2...

Answered by Hannah P. • Biology tutor

15596 Views

There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark for the boys

Find the total number of people in the class 10+20=30
find the total number of marks achieved by the class 60x30=1800
since the mean mark for the girls is 54, you can work out the total marks ac...

Answered by Dessi T. • Maths tutor

3658 Views