question_answer

A goldsmith has two qualities of gold, one of 24 carats and another of 32 carats purity. In what proportion should he mix both to H make an ornament of 30 carats purity?

A) 1 : 3

B) 2 : 3

C) 3 : 2

D) 1 : 5

Correct Answer: A

Solution :

[a] According to the rule of allegation,       \[\therefore \] Required ratio = Part I : Part II =  2 : 6 = 1 : 3