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Given x = 13.4cm and y = 4.3 cm. calculate the percentage error in X/Y correct to 4 d.p 

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Max val of x 13.45 min 13.35
Max val of y 4.35 min 4.25
max value of x  13.45 = 3.1647
                    y   4.25
min value of x  13.35 = 3.069
                   y   4.35
actual value of x  13.4 = 3.1163
                      y   4.3
Absolute error  3.1642  3.069 = 0.04785
                               2
Percentage Err. 0.04785 × 100 = 0.015355 × 100
                        3.1163
=1.5355%

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