Quantitative Aptitude Ques 1933

Question: In two types of stainless steel, the ratio of chromium and steel are 2: 11 and 5: 21, respectively. In what proportion should the two types be mixed so that the ratio of chromium to steel in the mixed type becomes 7: 32?

Options:

A) 2 : 3

B) 3 : 4

C) 1 : 2

D) 1 : 3

Show Answer

Answer:

Correct Answer: C

Solution:

  • Given, stainless steel I II III

$ \therefore $ Required ratio $ =\frac{1}{78}:\frac{1}{39}=1:2 $

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