To find the number of candidates who passed math only, we need to subtract the number of candidates who passed both math and physics (11) from the total number of candidates who passed math (18).
Therefore, the number of candidates who passed math only is 18 - 11 = <<18-11=7>>7.
In an examination 18 candidates pass math 17 pass physics 11 candidates passed both and 1 failed both find tge number that passed math only
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