exam Maths Puzzle Numerical Ability

x^-1 + y^-1/x^-1

simplify write the answers with all exponents positive

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exam Other Question

You are working for a gardening/mowing shop and need to order some things. The company you are ordering from uses the metric system for ordering purposes. Give the approximate me Can someone help me solve this problem?
I need this problem to be evaluate:

|4| + |-3|

Thanks,
Sher