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Maths Puzzle
Numerical Ability
Dealing with contradiction: Show that for any positive integer a and any prime p, if p is divides a, then p does not divide a+1.
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book Other Question
John and Harvey sold widgets, Harvey sold 2½ times as many widgets as John. If the difference in their sales was 87 units. How many widgets did each of them sell?
find two consecutive even integers whose product is
288