3. The great commander, Marshal of the Soviet Union, Georgy Konstantinovich Zhukov, was born in the village of Strelkovka, Kaluga Governorate. He lived for 78 years. In the 20th century, he lived 70 years longer than in the 19th century. In what year was G.K. Zhukov born?
3. Let's make a brief record of the problem statement

![](https://cdn.mathpix.com/cropped/2024_05_21_e53d4ff4f2278a1c0d12g-167.jpg?height=205&width=1328&top_left_y=957&top_left_x=364)

1) $78-70=8$ years - doubled the time of life in the 19th century;
2) $8: 2=4$ years - G.K. Zhukov lived in the 19th century;
3) $1900-4=1896$ - the birth year of G.K. Zhukov

Answer: Zhukov was born in 1896.