exam Maths Puzzle Numerical Ability

Write the following phrase using symbols. Use the variable x to represent the number. A number divided by 8

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exam Other Question

A computer locks up if more than 4 applications are running simultaneously. If the owner has 20 applications stored in his program file, how many different sets of 4 can he run, so that his cmpuer does not lock up? Simplify:

√[121x12y16z6]