exam Maths Puzzle Numerical Ability

Write 243 in exponential notation?

Find product of the cube of (-2/3) and the square of (4/-5)

Simplify [(1/2)^2-(1/4)^3x2^3

Simplify (-3xy^4(-4x^3y^6)

3^-3 a^-2 b^5 /c

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exam Other Question

A bicyclist rode into the county for 5 hours. In returning her speed was 5mi/h faster and her trip took 4 hours. What was her speed each way? A man drives out in the country at an average rate of 40 mph . In th evening traffic he drives back at 30 mph . If the total traveling time is 7 hours , what is the distance travel