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Find the four digit number i...

Find the four digit number in which the first digit is one fourth of the last digit, the second digit is 6 times the first digit, and the third digit is the second digit plus 3.

Correct answers: 107

The first user who solved this task is Snezana Milanovic.

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Frederick S. Russell

Died 5 Jun 1984 at age 86 (born 3 Nov 1897).Frederick Stratten Russell was an English marine biologist who linked the depth distribution of planktonic organisms to the intensity of light in the seas off the British Isles. He used photoelectric cells to measure the light, finding that the plankton moved up and down the water column in a daily cycle. Seasonal variations in light intensity also affected the migrations. His work helped explain the long-term changes in the ecosystem of the English Channel. Russell was fascinated by the larval stages of fishes and the life histories of certain types of jellyfish, which he studied in great detail. He wrote and illustrated several books on his findings.

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