In two types of stainless steel, the rat...

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 ?

1:2

1:3

2:3

3:4

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UPKAR PUBLICATION -PRACTICE SET-4-PART-III QUANTATIVE APTITUDE

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