What is the missing number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 75
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
Frederic Stanley KippingDied 1 May 1949 at age 85 (born 16 Aug 1863).British chemist who pioneered in the chemistry of silicones, organic derivatives of silicon. |