ECZ 2016 · GCE Paper 1 — Social and Commercial Arithmetic
Bronze is made up of zinc, tin and copper in the ratio 1 : 4 : 25 respectively. A bronze statue contains 120 g of tin. Find the required quantities of the other metals.
- A. zinc 30 g, copper 750 g
- B. zinc 24 g, copper 600 g
- C. zinc 120 g, copper 750 g
- D. zinc 30 g, copper 600 g
Verified working — step 1
Anchor on tin - its 4 parts are the 120 g you know, and that fixes the size of one part.The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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