Question

the sum of three consecutive of 5 is 945 find the largest multiple

Answer 1

5x + 5(x+1) + 5(x+2) = 945
5x + 5x + 5 + 5x + 10 = 945
15x + 15 = 945
15x = 930
x = 62
so, the largest multiple is 5(x+2)
= 5(62 + 2) = 5×64 = 320