exam Maths Puzzle Numerical Ability

Q1. Rearrange x = 1/2 A In (q - 3) + c to obtain q

Q2. Make y the subject E = P (1 - e^(y - 1))

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exam Other Question

compute the arthmetic mean for the following data, to 2 decimal places of significance: 8,2.2,25,7,-9,10,2, and 5.9 the tugboat moves at a rate of 10mph in still water. it travels 24 mi upstream and 24 mi downstream in a total time of 5 hr. what is the speed of the current?