Question

Give the sum of the greatest five consecutive even numbers less than 7000.

Answer 1

If you want that sum to be less than 7000

x + x+2 + x+4 + x+6 + x+8 = 7000
5x = 6980
x = 1396

so 1396 + 1398 + 1400 + 1402 + 1404 = 7000
but you want the sum to be < 7000
so 1394 + ... 1402 = 6990

if you want the numbers to be less than 7000
6998 + 6996 + 6994 + 6992 + 6990 = 34970

Answer 2

1000

Answer 3

6998