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? |
A) 2 : 3
B) 3 : 4
C) 1 : 2
D) 1 : 3
Correct Answer: C
Solution :
Given, stainless steel I II III |
\[\therefore \]Required ratio \[=\frac{1}{78}:\frac{1}{39}=1:2\] |
You need to login to perform this action.
You will be redirected in
3 sec