May 31, 2014  Practice GCSE exam questions on Upper and Lower Boundaries. These are all A/A* Questions. These questions are often poorly done on exams as students usually fail to. See all Mathematics resources » Related discussions on The Student Room. GCSE Maths help: Upper bounds and lower bounds » Upper bounds and lower bounds ».

Upper and Lower Range Approximation Upper and Decrease Bounds describe the limitations of accuracy for a given value. Queries are from Higher Rate 9-1 Maths GCSE Exam Queries. When a number has become documented to a specific precision - for instance, the nearest métre, we can work out its highest and most affordable possible beliefs relating to the limits of accuracy provided. These results are usually known to as its top or lower bounds.

The hyperlink below exhibits the OCR Standards for this issue which is certainly virtually similar to Edexcel ánd AQA 9-1 Maths: Bounds Syllabus Queries Questions Solutions Video Nothing None None of them None 9-1 Maths: Bounds Specimen Exam Questions Questions Answers Video clip None None None None of them Additional Questions.

A shelf can be being fitted into an alcove. The rack can be 2.3m long, with an error span of 5cmichael; and the alcove is certainly 2.4m long, with an error span of 5cmichael. What is definitely the biggest distance that there might become when appropriate the corner to the alcove? Response: 0.15m The distance is provided by the smallest space size and the largest alcove dimension.

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Shelf lower limited: 2.3 - 0.05 ÷ 2 = 2.275 Alcove Upper Bound = 2.4 + 0.05 ÷ 2 = 2.425 Difference = 2.425 - 2.275 = 0.15m 2. Crates are being loaded onto a paIlet for Iifting by a crané. The maximum weight the crane can raise is usually 1000kg. Each crate weighs in at 85kg, to the nearest kg.

What will be the optimum amount of crates to proceed on the pallet? Solution: 11 crates Higher limited for each cage = 85 + 0.5 = 85.5kg. 1000 ÷ 85.5 = 11.69. Rounding 11.69 can be not suitable as this could get it over the basic safety limit.

Upper and Decrease Range Approximation Upper and Decrease Bounds explain the limits of accuracy for a given value. Questions are from Increased Rate 9-1 Maths GCSE Exam Queries. When a number has ended up recorded to a certain accuracy - for instance, the nearest métre, we can function out its highest and minimum possible ideals based to the limits of accuracy supplied. These outcomes are often referred to as its top or lower bounds. The link below displays the OCR Specification for this subject which is virtually similar to Edexcel ánd AQA 9-1 Maths: Bounds Syllabus Queries Questions Answers Video None of them None None of them None 9-1 Maths: Range Specimen Examination Questions Queries Answers Video clip None None of them None None of them Additional Queries.