ECZ 2019 · O-Level Paper 2 · Question 4 — Computer and Calculator

Question from ECZ 2019 · O-Level Paper 2 · Question 4

(a) Express 52x - 4- 43x + 5as a single fraction in its simplest form.[3]

Verified working — step 1

Common denominator (2x - 4)(3x + 5):

(b) The program below is given in the form of a pseudocode. Begin Enter length If length < 0 Then display "error message" and re-enter positive length Else enter height If height < 0 Then display "error message" and re-enter positive height Else volume = 13* l * l * h End if Display volume End Draw the corresponding flowchart for the information given above.[5]

Verified working — step 1

Terminals are rounded, inputs and outputs are parallelograms, the decisions …

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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