ECZ 2016 · GCE Paper 1 — Index Notation
It is given that 10ˣ = 3 and 10ʸ = 9. What is the value of 10y−x?
- A. 3
- B. 6
- C. 27
- D. 13
Verified working — step 1
10y−x = 10ʸ ÷ 10ˣ = 9 ÷ 3 = …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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