exam Maths Puzzle Numerical Ability

x+x=3
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3 2 4

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exam Other Question

A cyclist rode 40 mi. before having a flat tire and then walking 5 mi to a service station. The cycling rate was four times the walking rate. The time spent cycling and walking was 5 h. Find the rate at which the cyclist was riding. What is the value of R in this equation:

(1-R^-48).02083 = R - 1