Question

Show that the relation R in the set Z of integers, given by

R = {(a, b): 3 divides a − b} is an equivalence relation. Hence find the

equivalence classes of 0, 1 and 2.​

Answer 1

Answer:

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Step-by-step explanation:

Some students of a school planned a picnic. The budget was 500. But 50 of them failed to come and thus the cost of the food each student increased by 5. how many student attended the picnic