exam Maths Puzzle Numerical Ability

2 = -(4l - 2)

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1. If f(x) = 3x + 1, and g(x) = (x^2 + 5x)^-1/2, find g(f(x))
2. Express as a logarithm of a single number or expression : 3log*10*6 (*10* being the s The fuel for a chain saw is a mix of oil and gasoline. The ratio of ounces of oil to gallons of gasoline is 7:19. There are 38 gallons of gasoline. How many ounces of oil are there?