book Maths Puzzle Numerical Ability

John and Harvey sold widgets, Harvey sold 2� times as many widgets as John. If the difference in their sales was 87 units. How many widgets did each of them sell?

Read Solution (Total 0)

book Other Question

I dont even know where to begin on this one. In each pair of equations, give the slope of each line, 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.