exam Maths Puzzle Numerical Ability

Word Problem:

Your relative wants to pick apples from the tree pictured below. Given that the tree casts a shadow of 30 ft. when your 6 ft. neighbor casts a shadow of 10 ft., how long should a latter be to reach the top of the tree?

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exam Other Question

Solving Linear Inequalities: Can you help me with this? The question is, Solve each simple linear inequality. Graph each solution on the number line provided. Example: 6x + 7 > 11 <------------>. ? How do I solve this problem? Thanks, JT. A worker can finish a job in 18 days.An other worker can do the same work but in 24 days and an other worker can do the same work in 30 days . If the 3 workers work 6 days together,what part of the job will be done ??