defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series Quantitative Aptitude Mixture Problems
Two alloys are both made up of copper and tin. The ratio of copper and tin in the first alloy is 1 ∶ 3 and in second alloy is 2 ∶ 5. In what ratio should two alloys be mixed, to obtain a new alloy such that the ratio of copper and tin be 3 ∶ 8 ?
1
4 ∶ 7
2
4 ∶ 9
3
1 : 1
4
3 ∶ 8