Mathematics for IGCSE & O level - Limits Of Accuracy (Section 1 - No. 30)
Given that p = 5.1 and q = 8.6, both correct to 1 decimal place, work out the largest possible value of p + q.
13.6
13.7
13.75
13.8
Explanation
The upper bound of p is 5.15 and the upper bound of q is 8.65. Thus p+q = 5.15 + 8.65 = 13.8
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