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saqib

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if ' a' is congruece to' b ' and' b' is congruence to' c' then 'a' is congurence to 'c'
1. 2 answers
2. 346 views
If x and y are positive numbers and the average of 4, 20 and x isequal to the average of y and 16, then the ratio x: y is
1. 1 answer
2. 362 views