Humildepex639viz
Answered

Find the sum of all integer-multiple of 8 between 9 and 199.

Sagot :

Mlcparra16viz
The first multiple of 8 would be 16 and the last would be 192.
8(2+3+4+...+24) = 8(24*25/2 - 1) = 8(300-1) = 8 * 299 = 2392