Find number abc
If ca661 - 544b8 = ac18a find number abc. Multiple solutions may exist.Correct answers: 5
#brainteasers #math
Street sweepersIn 1896, black American inventor C.B. Brooks was issued a U.S. patent for street sweepers (No. 560,154). He was issued an earlier patent for street sweepers on 17 Mar of the same year (No. 556,711). Brooks also held a patent for a punch issued 31 Oct 1893 (No. 507,672). |