Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 177
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
Hoover DamIn 1935, the Boulder Dam, Boulder City, Nev. was dedicated. The concrete-arch dam, subsequently named Hoover Dam (1947), supplied the first U.S. hydroelectric plant to produce a million kilowatts. This production peak occurred in June 1943, though the first of its four generators was placed into operation on 26 Oct 1936. The power serves the Los Angeles area. |