exam Maths Puzzle Numerical Ability

Trent can deliver his newspapers in 60 minutes. Lois delivers her newpapers in 40 minutes on the same route. How long would it take them to deliver the newspapers if they work together? ________minutes?

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Find the nos. of edges in a pyramid with seven faces. ( Is the pyramid base also included as one of the faces?)

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Rup I am having trouble answering this question, can you help? When solving an inequality, when is it necessary to change the direction of the inequality symbol? Can you give a real life example of this? Thank You