Civil Services UPSC EPFO (EO/AO) Mock Test 2023 Quantitative Aptitude Ratio and Proportion Compound Ratios
In a compound element iron and zinc are in the ratio of 5 : 2 and in another compound zinc and chromium are in the rato of 3 : 2, if two parts of the first compound and one part of the second compound are melted together so that a new compound of iron, zinc and chromium are formed, then what will be the ratio of the three compounds?
1
5 : 5 : 4
2
10 : 7 : 4
3
50 : 41 : 14
4
10 : 7 : 8