state gov DSSSB Junior Assistant, Steno and LDC Mock Test 2023 - 24 Quantitative Aptitude Mixture Problems To Make a Mixture from Two Mixtures
Brass is an alloy of copper and zinc and Bronze is an alloy containing 80% copper, 4% zinc and 16% tin. A fused mass of brass and bronze is found to contain 74% copper, 16% zinc and 10% tin. Find the ratio of copper and zinc in brass.
1
16 ∶ 7
2
9 ∶ 16
3
7 ∶ 9
4
16 ∶ 9